SHRESTHA, U. K. Double pyloric ostium, an extremely rare endoscopic finding, in a 62-year-old male patient presenting with melena. Journal of Advances in Internal Medicine, [S. l.], v. 7, n. 2, p. 47, 2018. DOI: 10.3126/jaim.v7i2.23494. Disponível em: https://www.nepjol.info/index.php/JAIM/article/view/23494. Acesso em: 19 apr. 2024.