Browsing by Author "Ozyilkan, Ozgur"

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Association of Age with Breast Cancer Clinical and Pathological Factors: Analysis of Turkish National Breast Cancer Registry
(2015) Benekli, Mustafa; Altundag, Kadri; Dumanli, Esra; Isikdogan, Abdurrahman; Karaoglu, Aziz; Tekin, Salim Basol; Oksuzoglu, Berna; Kocer, Murat; Sevinc, Alper; Boruban, Melih Cem; Turna, Hande; Uslu, Ruchan; Ozyilkan, Ozgur; Yalcin, Bulent; Coskun, Ugur; Kilickap, Saadettin; Dogu, Gamze Gokoz; Ozturk, Banu; Gumus, Mahmut; Buyukberber, Suleyman; Uncu, Dogan; Kara, Oguz; Aliustaoglu, Mehmet; Ozkan, Metin; Cicin, Irfan; Elkiran, E. Tamer; Dane, Faysal; Avci, Nilufer; Ulas, Arife; Ozdemir, Feyyaz; Kaya, Ali Osman
Being A Medical Oncologist Near the War Area
(2014) Sumbul, Ahmet Taner; Sezer, Ahmet; Tonyali, Onder; Ozturk, Mehmet Akif; Abali, Huseyin; Ozyilkan, Ozgur; https://orcid.org/0000-0002-6445-1439; https://orcid.org/0000-0001-5596-0920; https://orcid.org/0000-0001-8825-4918; 24965429; AAD-2667-2020; D-7660-2016; AAD-2817-2021
Can Primary Tumor Localization Predict the Which Patient Will Have Benefit From Addition of Taxanes to Platin-5-FU Based Regimens in Metastatic Gastric Cancer. Multi Center Retrospective Analysis from Turkey, Society of Turkish Oncology Group Study
(2015) Kose, Fatih; Sedef, Ali Murat; Ozdemir, Nuriye; Gunaldi, Meral; Urun, Yuksel; Besen, Ali Ayberk; Sumbul, Ahmet Taner; Goksu, Sema Sezgin; Dogan, Ozlem; Mertsoylu, Huseyin; Tatli, Ali Murat; Erdem, Dilek; Demirci, Serkan; Gunduz, Seyda; Yildirim, Mustafa; Ozyilkan, Ozgur; Abali, Huseyin
Can serial monitoring of serum Vascular Endothelial Growth Factor (VEGF), Nitric Oxide (NO), and Angiotensin II (ANGII) levels have predictive role during Bevacizumab treatment?
(2014) Sumbul, Ahmet Taner; Disel, Umut; Sezgin, Nurzen; Sezer, Ahmet; Kose, Fatih; Besen, Ali Ayberk; Sumbul, Zehra; Abali, Huseyin; Ozyilkan, Ozgur
Background: Standard treatment of colorectal cancer includes both cytostatic chemotherapy and targeted therapies. Bevacizumab, targeting the VEGF receptor, is one of the primary targeted therapies that achieve better response rate and survival rate as compared to combination chemotherapy. To the best of our knowledge, there is no established single marker that can be used as a predictive marker in bevacizumab therapy. Material/Methods: We enrolled 24 patients with the diagnosis of metastatic colorectal cancer in our study. During the study, 2 blood samples were drawn from patients before the first cycle and after the sixth cycle of bevacizumab therapy. Serum levels of VEGF, ANG II, and NO were recorded. Results: While the change across VEGF levels was found to be a statistically significant decreasing trend (p=0.009), this decrease was not found to be correlated with treatment response and hypertension development. Additionally, no statistically significant difference was found in terms of NO and ANG II levels. Conclusions: This study showed a significant decrease in serum VEGF, but failed to show a significant change in NO and ANG II levels during bevacizumab treatment. Although no significant correlation was found between the presence of hypertension and markers, most patients (83%) had an increase in their blood pressure. Our results suggest that dynamic monitoring of NO and ANG II, along with VEGF, may not be useful as predictive markers for bevacizumab treatment in colorectal cancer.
Cardiotoxicity of Trastuzumab Emtansine (T-DM1): A Single-center Experience
(2021) Acibuca, Aynur; Sezer, Ahmet; Yilmaz, Mustafa; Sumbul, Ahmet Taner; Demircan, Senol; Muderrisoglu, Ibrahim Haldun; Ozyilkan, Ozgur; 0000-0002-3444-8845; 34898302; ABG-4047-2020
Objective New anti-cancer drugs promise to increased survival benefits and reduce adverse events. Trastuzumab emtansine (T-DM1) is a novel anti-human epidermal growth factor receptor 2 agent that has shown minimal cardiotoxicity in clinical trials. However, data on real-life outcomes are required. Methods A retrospective review of our center's medical records was performed, including female patients aged >= 18 years with a diagnosis of metastatic breast cancer who were treated with T-DM1. Descriptive statistics were used to investigate clinical features that could increase the risk of cardiotoxicity. Cardiotoxicity was determined by comparing pre and post-T-DM1 echocardiogram results and was defined as a decrease in the left ventricular ejection fraction (LVEF) >10% to below 55%. Results Data from 41 female patients with a mean age of 52 +/- 11.5 years were evaluated. A significant LVEF decrease (from 59% to 33%) was observed in one patient during T-DM1 treatment. Further investigation showed that this decrease was due to underlying coronary artery disease, and LVEF recovered to the baseline value after coronary revascularization. Conclusion T-DM1 seems to be safe in terms of cardiotoxicity. Real-life data with a larger sample size are still needed to confirm the cardiac safety of T-DM1.
Characteristics of Newly Diagnosed Hepatocellular Carcinoma Patients Across Turkey: Prospective Multicenter Observational 3K Registry Study
(2021) Ozyilkan, Ozgur; 34876392
Aims: To evaluate patient profile for epidemiological and clinicopathological characteristics and potential risk/prognostic factors in newly diagnosed hepatocellular carcinoma (HCC) patients across Turkey. Methods: A total of 547 patients (mean (SD) age 62.6 (10.3) years, 81.9% were males) were included in this registry study. Data on patient characteristics, etiologies of HCC, laboratory values, and tumor characteristics and stages were recorded at study enrollment. Results: HBV infection (68.2%) was the leading etiology, followed by HCV infection (17.2%), HDV infection (5.5%), alcohol (6.4%), and NAFLD (3.5%), as the major etiologies. Considering that 51.6% of the patients had >5 cm HCC, 44% were Child-Pugh B/C and 57% were BCLC B-D, it appears that a significant group of HCC patients were diagnosed at advanced stages. Of 540 patients, 271 (50.2%) were referred or applied with the diagnosis of HCC. Patients with HCC at presentation had larger tumor size (median (min-max) 6.6 (0-30) vs. 4.8 (0-90) cm, P<.001) and more advanced BCLC stage (Stage C-D in 40.8% vs. 26.4%, respectively, P=.005), compared to patients who were diagnosed during follow-up. Conclusions: Our findings revealed that HBV infection was the leading etiology and a moderate-to-advanced disease was evident in more than half of patients at the time of diagnosis. HCC patients diagnosed at follow-up had smaller tumor size and earlier BCLC stage.
Characteristics of Turkish Colorectal Cancer Patients and Bevacizumab Preference.
(2017) Cicin, Irfan; Gumus, Mahmut; Uncu, Dogan; Ozkan, Metin; Kilickap, Saadettin; Elkiran, Tamer E.; Isikdogan, Abdurrahman; Karaoglu, Aziz; Oksuzoglu, Berna; Ozdemir, Feyyaz; Turna, Hande; Kara, Oguz; Ozyilkan, Ozgur; Guducu, Merve; Erdogan, Alper; Uslu, Ruchan
Clinical efficacy and safety of the BAT1706 (proposed bevacizumab biosimilar) compared with reference bevacizumab in patients with advanced nonsquamous NSCLC: A randomized, double-blind, phase III study.
(2022) Chen, Likun; Trukhin, Dmytro; Kolesnik, Oleksii; David Gomez Rangel, Jose David; Cil, Timucin; Li, Xingya; Cicin, Irfan; Kobziev, Oleh; Shen, Yihong; Liu, Zhihua; Oleksandr, Ivashchuk; Ozyilkan, Ozgur; Igor, Bondarenko; Ursol, Grygorii; Chen, Jun; Oleksandr, Kostiuk; Chen, Zhendong; Zhang, Helong; Tural, Deniz; Zhang, Li
Clinicohistopathological Features and Treatment Outcomes in Testicular Lymphomas: A Single Center Experience
(2018) Sedef, Ali Murat; Kocer, Nazim Emrah; Besen, Ali Ayberk; Mertsoylu, Huseyin; Sezer, Ahmet; Sumbul, Ahmet Taner; Kose, Fatih; Ozyilkan, Ozgur; https://orcid.org/0000-0002-5943-9283; https://orcid.org/0000-0001-8825-4918; AAM-5436-2021; AAD-2817-2021
Clinicohistopathological features and treatment outcomes of neuroendocrine tumors: a single center experience
(2018) Kose, Fatih; Sedef, Ali Murat; Sumbul, Ahmet Taner; Mertsoylu, Huseyin; Besen, Ali Ayberk; Sezer, Ahmet; Ozyilkan, Ozgur; Abali, Huseyin; D-4793-2014
Purpose: Tumor and patient characteristics of neuroendocrine tumors (NET) significantly change between geographical locations that probably induced by environmental and genetic factors throughout the world. Therefore, reporting single center experience may help clarifying epidemiological view and improving decision-making process. Materials and Methods: We performed retrospective analysis of 115 patients of NETs those who followed by Baskent University, department of Medical Oncology and department of General Surgery to record patients and tumors characteristics, treatment modalities, survival rates, and prognostic factors. Results: Median overall survival (OS) time for all group and localized NETs were 44 and 24 months, respectively. Most common primary site was found as gastrointestinal system and then pancreatic region. Curative surgical resection rate was 46% and 8.5% of patients presented with carcinoid syndrome. Liver metastasis was far the most common metastatic site compared to lung, bone, and lymph node metastasis. Over 70 percent of patients were treated with chemotherapy and somatostatin analogs. Conclusion: Patients with higher grade, male gender, and advanced age (>65 years old) had poor survival rate. However, relatively low number of patients and less usage of (<10%) of new treatment modalities created limitations for producing future directions from our study.
The Clinicopathological and Survival Differences Between Never and Ever Smokers with Non-Small Cell Lung Cancer
(2014) Muallaoglu, Sadik; Karadeniz, Cemile; Mertsoylu, Huseyin; Besen, Ali Ayberk; Sezer, Ahmet; Sedef, Ali Murat; Kose, Fatih; Ozyilkan, Ozgur; https://orcid.org/0000-0002-6242-2802; https://orcid.org/0000-0002-1932-9784; https://orcid.org/0000-0002-6445-1439; https://orcid.org/0000-0002-0156-5973; https://orcid.org/0000-0001-8825-4918; 24965406; IVU-7523-2023; M-9530-2014; AAD-2667-2020; G-4827-2016; AAD-2817-2021
Purpose: Cigarette smoking was regarded as the most important carcinogenic factor of lung cancer, yet in recent years lung cancer in never-smokers is an increasingly prominent public health issue. The aim of this study was to assess the epidemiological and clinicopathological characteristics of never-smoker patients with non small cell lung cancer (NSCLC), focusing on clinical risk factors and survival. Methods: We retrospectively analyzed 290 NSCLC patients who presented between 2006 and 2011. Differences in clinical features and survival between never- and ever-smoker patients were analyzed. Student's t-test and Mann-Whitney U-test were used to assess the significance of the variables between the groups. Survival curves were calculated using Kaplan-Meier method. Hazard ratio (HR) for death and its 95% confidence interval (CI) were calculated by Cox regression analysis. Results: There were 243 (83.8%) ever-smokers and 47 (16.2%) never-smokers. In never-smokers females predominated (80.9%) as well as patients with adenocarcinomas (78.7%). At the time of analysis 143 (49.3%) patients had died. The 5-year overall survival (OS) rates were not significantly different between never- and ever-smokers (p=0.410). The median OS of all patients was 26 months (95% CI: 16.8-35.2). The median OS was 23 months (95% CI: 11.8-34.2)for never-smokers and 30 months (95% CI: 19.7-40.3) forever-smokers (p=0.410). Never-smokers tended to present with more advanced disease than ever-smokers (p<0.004) and also with more advanced age (p<0.001). The HR for death increased with poorer Eastern Cooperative Oncology Group (ECOG) performance status (PS) (ECOG 2-3), advanced stage (stage 3-4) and untreated patients. Slightly lower risk for death was registered in patients with adenocarcinoma vs those with squamous cell carcinoma (S CC). Conclusion: Although no difference in survival was seen, definite epidemiologic differences do exist between never-smokers and ever-smokers patients with NSCLC. Future efforts should focus on the underlying biological differences, and on identifying potential non-tobacco related risk factors in order to improve treatment strategies for these two groups of NSCLC patients.
Concurrent Chemoradiotherapy with Vinorelbine plus Split-Dose Cisplatin may be an Option in Inoperable Stage III Non-Small Cell Lung Cancer: A Single-Center Experience
(2015) Mertsoylu, Huseyin; Kose, Fatih; Sumbul, Ahmet Taner; Sedef, Ali Murat; Dogan, Ozlem; Besen, Ali Ayberk; Parlak, Cem; Findikcioglu, Alper; Muallaoglu, Sadik; Sezer, Ahmet; Sakalli, Hakan; Ozyilkan, Ozgur; 25731741
Background: Concurrent chemoradiotherapy is the current standard treatment for inoperable stage III non-small cell lung cancer (NSCLC). In this study we aimed to investigate the efficacy and toxicity of CCRT with split dose of cisplatin (30 mg/m(2)) and vinorelbine (20 mg/m(2)) in patients with inoperable stage III NSCLC followed in our oncology clinic. Material/Methods: Medical records of 97 patients with inoperable stage III NSCLC treated with concurrent chemoradiotherapy with cisplatin-vinorelbine were retrospectively analyzed. Cisplatin (30 mg/m(2)) and vinorelbine (20 mg/m(2)) were administered on days 1, 8, 22, and 29 during radiotherapy. Two cycles of consolidation chemotherapy were given. All patient data, including pathological, clinical, radiological, biochemical, and hematological data, were assessed retrospectively using our database system. Results: Our study included 97 unresectable stage III NSCLC patients who were treated with CCRT. Median age was 58 years old (range 39-75) and 87 (89.7%) of the patients were men. ECOG performance score was 0-1 in 93 patients (95.9%). Squamous histology, the most common histology, was diagnosed in 46 patients (47.4%). Median follow-up time was 23.8 months. Median progression-free survival (PFS) and median overall survival time (OS) were 10.3 months and 17.8 months, respectively. Objective response rate and clinical benefit rate were 75.3% and 83.5%, respectively. Distant and local relapse rate were 57.1% and 42.9%, respectively. Hematological and non-hematological grade 3-4 toxicities were seen in 13 (13.4%) and 16 (16.5%) patients, respectively. Six (6.1%) patients died due to toxicity. Conclusions: The results of this study suggest that split-dose cisplatin may offer fewer grade III-IV toxicities without sacrificing efficacy and could be an option in patients with inoperable stage III NSCLC during CCRT. Similar to past studies, despite high response rate during CCRT, distant relapse is the major parameter that influences patient survival in long-term in NSCLC.
Continuous Distress in an Oncology Clinic in Turkey: Should We Make Use of The Distress Thermometer Mandatory As A Precautionary Measure For Physicians?
(2014) Sumbul, Ahmet Taner; Sezer, Sezer, Ahmet; Abali, Huseyin; Dicel, Umut; Gultepe, Ilhami; Besen, Ali Ayberk; Ozyilkan, Ozgur; https://orcid.org/0000-0002-6445-1439; https://orcid.org/0000-0001-5596-0920; https://orcid.org/0000-0002-7862-0192; https://orcid.org/0000-0001-8825-4918; 25261671; AAD-2667-2020; D-7660-2016; AAD-6910-2021; AAD-2817-2021
Correlation of Histopahologic Response and Prognostic Markers with Survival in Locally Advanced Non-Small Cell Lung Cancer Patients Who Have Treated with Neoadjuvant Chemotherapy
(2015) Kucukoztas, Nadire; Oguz, Arzu; Rahatli, Samed; Dizdar, Omer; Keskin, Gul Sema Yildiran; Ozyilkan, Ozgur; Altundag, Ozden; 0000-0001-8825-4918; 0000-0003-0197-6622; 0000-0001-5588-0306; 0000-0001-6512-6534; 0000-0003-3163-7429; AAD-2817-2021; W-9219-2019; AAM-3226-2021; W-8004-2019; AAJ-3047-2021
Efficacy and Safety of the Proposed Bevacizumab Biosimilar BAT1706 Compared with Reference Bevacizumab In Patients with Advanced Nonsquamous Non-Small Cell Lung Cancer: A Randomized, Double-Blind, Phase III Study
(2023) Chen, Likun; Rangel, Jose David Gomez; Cil, Timucin; Li, Xingya; Cicin, Irfan; Shen, Yihong; Liu, Zhihua; Ozyilkan, Ozgur; Igor, Bondarenko; Chen, Jun; Oleksandr, Kostiuk; Chen, Zhendong; Zhang, Helong; Fu, Ziyi; Dong, Qingfeng; Song, Shuqiang; Yu, Jin-Chen; Zhang, Li; 37935428
Background: BAT1706 is a proposed biosimilar of bevacizumab (Avastin (R)). We aimed to compare the efficacy and safety of BAT1706 with that of EU-sourced reference bevacizumab (EU-bevacizumab) in patients with advanced nonsquamous non-small cell lung cancer (NSCLC).Methods: Patients were randomized 1:1 to BAT1706 plus paclitaxel and carboplatin (BAT1706 arm) or EU-bevacizumab plus paclitaxel and carboplatin (EU-bevacizumab arm) given every 3 weeks for six cycles, followed by maintenance therapy with BAT1706 or EU-bevacizumab. The primary endpoint was overall response rate at week 18 (ORR18). Clinical equivalence was demonstrated if the 90% confidence interval (CI) of the BAT1706:EU-bevacizumab ORR18 risk ratio was contained within the predefined equivalence margins of 0.75-1.33 (China National Medical Products Administration requirements), or 0.73-1.36 (US Food and Drug Administration), or if the 95% CI of the ORR18 risk difference between treatments was contained within the predefined equivalence margin of -0.12 to 0.15 (EMA requirements).Results: In total, 649 randomized patients (BAT1706, n = 325; EU-bevacizumab, n = 324) received at least one cycle of combination treatment. The ORR18 was comparable between the BAT1706 and EU-bevacizumab arms (48.0% and 44.5%, respectively). The ORR(18 )risk ratio of 1.08 (90% CI: 0.94-1.24) and the ORR(18 )risk difference of 0.03 (95% CI: -0.04 to 0.11) were within the predefined equivalence margins, demonstrating the biosimilarity of BAT1706 and EU-bevacizumab. The safety profile of BAT1706 was consistent with that of EU-bevacizumab and no new safety signals were observed.Conclusion: In patients with advanced nonsquamous NSCLC, BAT1706 demonstrated clinical equivalence to EU-bevacizumab in terms of efficacy, safety, pharmacokinetics, and immunogenicity.
Epidemiology of Colorectal Cancer in Turkey: A Cross-Sectional Disease Registry Study (A Turkish Oncology Group Trial)
(2015) Aykan, Nuri Faruk; Yalcin, Suayib; Turhal, N. Serdar; Ozdogan, Mustafa; Demir, Gokhan; Ozkan, Metin; Yaren, Arzu; Camci, Celalettin; Akbulut, Hakan; Artac, Mehmet; Meydan, Nezih; Uygun, Kazim; Isikdogan, Abdurrahman; Unsal, Diclehan; Ozyilkan, Ozgur; Arican, Ali; Seyrek, Ertugrul; Tekin, Salim Basol; Manavoglu, Osman; Ozet, Ahmet; Elkiran, Tamer; Disci, Rian; 0000-0001-8825-4918; 25835113; AAD-2817-2021
Background/Aims: This study aimed to determine the epidemiological characteristics of colorectal cancer in Turkey. Materials and Methods: In this multicenter, prospective, and cross-sectional registry study, data for 968 patients with colorectal cancer from 21 centers in 7 geographic regions were analyzed. Results: Diagnosis was colon cancer in 662 (68.4%) and rectum cancer in 306 (31.6%) patients. In total, 60.9% of patients was male; mean age was 58.9 +/- 12.6 years. Among patients, 15.0% was drinking alcohol, 17.5% was smoking, 1.5% had familial history of polyposis, 15.0% had diabetes mellitus, 1.0% had inflammatory bowel disease. Fruit and vegetable consumption was low (<3 times/week) in 35.5% and red meat consumption was high (>= 3 times/week) in 47.4% of the patients. Median time-to diagnosis was 3.0 months and 4.0 months for patients with colon and rectum cancer, respectively. Mean body mass index was >25 in all group of patients. Distal rectum (61.3%) and sigmoid colon (36.8%) were the most common locations of cancer, for rectum and colon respectively. In total, 85.6% of patients were operated; 25.8% had emergency surgery. Low anterior resection rate was 64.2% in rectum cancer. In majority (89.8%) of the patients with rectum cancer who received preoperative treatment, conventional chemo-radiotherapy regimen was given. pTNM staging at diagnosis showed that stage III and IV patients were in majority (35.9% and 29.7%, respectively). Conclusion: Colon cancer is more frequent than rectum cancer in Turkey. Colorectal cancer patients are diagnosed at later stages. Most of the cases were operated. Interregional differences for risk factors are worthwhile for evaluation in future trials.
Evaluation of Flare Phenomena in Advanced Colorectal Cancer After Bevacizumab Cessation in The Well-Responded Cases
(2016) Besen, Ali Ayberk; Kose, Fatih; Abali, Huseyin; Ozyilkan, Ozgur; Zengin, Nurullah; Yildirim, Nuriye; https://orcid.org/0000-0002-7862-0192; https://orcid.org/0000-0001-8825-4918; AAD-6910-2021; AAD-2817-2021
Flare Phenomenon in Advanced Colorectal Cancer: Cessation of evacizumab after Predefined Cycles of Therapy may not Affect Outcome
(2017) Besen, A.Ali; Kose, Fatih; Sumbul, Ahmet T:; Ozdemir, Nuriye; Ozyilkan, Ozgur; Zengin, Nurullah; Abali, Huseyin; 0000-0002-5573-906X; 0000-0002-0156-5973; 0000-0002-7862-0192; 0000-0001-8825-4918; D-4793-2014; G-4827-2016; AAD-6910-2021; AAD-2817-2021
Limited number of experimental and clinical studies showed rapid tumor regrowth after bevacizumab cessation in advanced colorectal cancer. We retrospectively evaluated rapid regrowth phenomenon in 105 patients those who were treated with the predefined number of chemotherapy cycles and grouped according to whether the chemotherapy regimen in the first line setting included bevacizumab (CT-Bev arm) or not (CT arm). Median age was 55 years old. Median overall and progression free survival times were 27 and 11 months, respectively. Rapid progression rates were 42% and 40% in CT arm and CT -Bev arm without no statistically significant difference (p= 0.84). In CT arm, significantly more patients with stable disease (SD) progressed rapidly compared to patients with complete (CR) or partial response (PR) (53% vs. 27%, p= 0.04). This result was also similar in CT-Bev arm (48% vs. 30%, p= 0.27) but could not reach to the significant p-value. Overall survival 2, the time from the end of last dose of chemotherapy +/- bevacizumab to death, was significantly shorter in both CT and CT -Bev arms for patients who showed SD compared to CR or PR (15 vs 38 months) (p< 0.001).Current study supports that withdrawal of bevacizumab after predefined treatment cycles may not have any adverse effect on patients' outcome of advanced CRC. This result is particularly acceptable for the patients who show CR or PR to the treatment.
Genomic markers of response to monotherapy abemaciclib in the nextMONARCH 1 study
(2020) Hamilton, Erika P.; Cortes, Javier; Jerusalem, Guy; Kaufman, Peter A.; Ozyilkan, Ozgur; Hegg, Roberto; Litchfield, Lacey M.; Wang, Hong; Graham, Hillary T.; Wjayawardana, Sameera R.; Jansen, Valerie M.; Martin, Miguel
Geographic Variations of Clinical Characteristics in Breast Cancer: Analysis of Turkish National Breast Cancer Registry
(2015) Kilickap, Saadettin; Altundag, Kadri; Dumanli, Esra; Gumus, Mahmut; Uslu, Ruchan; Ozyilkan, Ozgur; Yalcin, Bulent; Kara, Oguz; Dogu, Gamze Gokoz; Ozturk, Banu; Kaya, Ali Osman; Aliustaoglu, Mehmet; Uncu, Dogan; Ozdemir, Feyyaz; Cicin, Irfan; Ozkan, Metin; Kocer, Murat; Turna, Hande; Buyukberber, Suleyman; Benekli, Mustafa; Coskun, Ugur; Karaoglu, Aziz; Tekin, Salim Basol; Dane, Faysal; Avci, Nilufer; Ulas, Arife; Oksuzoglu, Berna; Sevinc, Alper; Boruban, Melih Cem