1 - Ozer I., Ulas M., Ercan M., Ozogul Y., Bostanci E.B., Zengin N., Ozel U., Bilgihan A., Akoglu M., ‘The effects of duratıon of CO2 pneumoperıtoneum on colonıc anastomoses,’ ISUCRS 2006, XXI. Bıennıal Congress Of Internatıonal Socıety Of The Unıversıty Of Colon And Rectal Surgeons, 215, P.Pr-26, Istanbul, Turkey, 2006.

2 - Ulas M.,Ozer I., Ercan M., Ozogul Y., Bostanci E.B., Temucin T., Ozel U., Bilgihan A., Akoglu M., ‘Effects of pneumoperıtoneum on colonıc anastomoses followıng preoperatıve 5-fluorouracıl treatment in the rat,’ ISUCRS 2006, XXI. Bıennıal Congress Of Internatıonal Socıety Of The Unıversıty Of Colon And Rectal Surgeons, 208, P.Pr-19, Istanbul, Turkey, 2006.

3 - Özoğul Y, Güngör A, Seven C, Ulaş M, Özer İ, Bostancı B, Akoğlu M. ‘Nutritional state of the patients who are candidates for gastrointestinal surgery,’ 28th ESPEN CONGRESS, 68, P.Pr, P0096, İstanbul, Turkey, 2006.

4 - Özoğul Y.B., Ulaş M., Gömceli İ., Polat E., Özer İ., Ercan M., Seven C., Bostancı E.B., Akoğlu M., ‘Factors influencing metastatic lymph node ratio in curative colorectal surgery,’ 18th World Congress of the International Association of Surgeons, Gastroenterologist and Oncologists. Hepato-gastroenterology, supplement 1, volume 55, A168, P.Pr 140, Istanbul, 2008.

5 - Ulaş M., Özoğul Y.B., Gömceli İ., Polat E., Özer İ, Ercan M, Seven C., Bostancı E.B., Akoğlu M., ‘Factor influencing preoperative CEA level in colorectal surgery,’ 18th World Congress of the International Association of Surgeons, Gastroenterologist and Oncologists. Hepato-gastroenterology, supplement 1, volume 55, A168, P.Pr 141, Istanbul, 2008.

6 - Bostancı B.,Özer İ., Ekiz F., Atıcı E., Reyhan E., Akoğlu M., Erkılınç A., Yakut C., ‘Tracheal reconstruction with pleural and gorotex patch following an extensive longitudinal iatrogenic tracheal rupture after double lumen intubation,’ 18th World Congress of the International Association of Surgeons, Gastroenterologist and Oncologists. Hepato-gastroenterology, supplement 1, volume 55, A204, P.Pr 230, Istanbul, 2008.

7 - Bostancı EB, Kerimoglu RS, Ozer I, Dalgıc T, Aksoy E, Ulas M, Ercan M, Akoğlu M. Effects of pancreaticojejunostomy and wirsungojejunostomy on pancreatic anastomotic leakage in patients with main pancreatic duct diameter 5 mm or less. Annual Meeting of the European Society of Surgery, ESS 2012, Poster 508, Istanbul, Türkiye, Kasım 2012

8 - Aksoy E, Bostancı EB, Ozer I, Dalgıc T, Turkoglu MA, Ulas M, Ozogul YB, Akoglu M.Effects of external pancreatic stents on pancreatic anastomotic leakage for patients with wirsung canal size ≤ 5 mm. XVI. Annual Meeting of the European Society of Surgery, ESS 2012, Poster 520, Istanbul, Türkiye, Kasım 2012

9 - Bil D, Karadağ S, Özer İ, Ercan M, Ulaş M, Gömceli İ, Dalgıç T, Özoğul Y, Bostancı EB, Akoğlu M. Management of 4 wide wounds with enteroatmospheric fistula. 19th WCET Biennial Congress, 1180 Wound, 19-23 April 2012, South Africa.

10 - Volkan Öter, Murat Ulaş, İlter Özer, Erdal Birol Bostancı. Giant intrahepatic billiary cystadenoma mimicking hepatic hydatic cyst. Asian Pacific Association for the study of the Liver;No;1133, March 12-15, İstanbul 2015.

11 - Volkan Öter, İlter Özer, Tahsin Dalgıç, Cemil Binarbaşı, Murat Ulaş, Erdal Birol Bostancı, Musa Akoğlu. The issue of positive proximal magrin after resection for hilar cholangiocarcinoma analysis of 21 cases. Asian Pacific Association fort he study of the Liver;No;1224, March 12-15, İstanbul 2015.