Fonseca Barragán JV, Bautista Arana MM, Medina Guevara LM, Valdivieso Estupiñán PJ, Gudiño justicia CS, Ruilova Blacio JC, et al. Step by step of a cholecystectomy with open biliary exploration plus duodenotomy for resolution of a gallstone impacted in the ampulla of Vater after failed endoscopic retrograde pancreatography cholangio (ERCP). SAP Multidisciplinary Open [Internet]. 2025 Jan. 1 [cited 2026 Sep. 19];3:111. Available from: https://mo.southam.pub/index.php/mo/article/view/111