Yoshihiro, H., Kensei, M. and Yoshifuku, N. (2014) “Endoscopic papillectomy for carcinoma of the ampulla of Vater: Possible standardization based on endoscopy and immunohistochemistry”, Turkish Journal of Gastroenterology, 25(5), pp. 563–567. doi: 10.5152/tjg.2014.7190.