Director of General Surgery at Bayindir Hospital 2022-1999
Gazi University Faculty of Medicine, Department of General Surgery, faculty member 2017-1982
Russiun Academy of medical science cancer center,NN Blochin Russiun reseurch centre moscow 2012
Tokyo National Cancer Center Gastric Ca department 2000
Tokyo National Cancer center eusephagus and Gastric Cancer department fellowship,Tokyo-Japan
1992-1993 Toramonon hospital,Tokyo University ,Tokyo Japan
