Case report on klatskin tumor. International Journal of Research in Pharmacology & Pharmacotherapeutics, [S. l.], v. 6, n. 1, p. 50–52, 2021. DOI: 10.61096/ijrpp.v6.iss1.2017.50-52. Disponível em: https://www.ijrpp.com/ijrpp/article/view/118. Acesso em: 17 apr. 2026.