Synchronous double primary squamous cell carcinoma and adenocarcinoma of the extrahepatic bile duct: a case report
Journal of Medical Case Reports. 2015;9(1): 
Synchronous Adeno-squamous Carcinoma of Gallbladder and Adenocarcinoma of Common Bile Duct: Twin Trouble
Journal of Gastrointestinal Cancer. 2018;50(4):1014-1017
Mixed Ductal–Endocrine Carcinoma of the Pancreas with Synchronous Papillary Carcinoma-In-Situ of the Common Bile Duct: A Case Report and Literature Review– Synchronous Pancreatic and Bile Duct Tumors
The American Surgeon. 2008;74(4):338-340
Synchronous triple malignant tumors of the lung. A case report of bronchial carcinoid, small cell carcinoma, and adenocarcinoma of the right lung
Lung Cancer. 1986;2(4):270
Synchronous primary adenocarcinoma of the bile duct: A case report
Gastroenterología y Hepatología. 2022;45:78-80
Extrahepatic Cholangiocarcinoma: Carcinoma of the Middle and Distal Common Bile Duct (Middle and Lower Bile Duct Carcinomas)
Tumors and Tumor-Like Lesions of the Hepatobiliary Tract. 2016;1-21
Primary Small Cell Carcinoma of the Common Bile Duct, in Which Surgical Treatment was Performed After Neoadjuvant Chemotherapy: Report of a Case
Surgery Today. 2003;33(11):870-872
Spontaneous regression of primary bile duct carcinoma
Cancer. 1964;17(6):730-732
Surgical Treatment of Distal Common Bile Duct Malignancy
Bile Duct Cancer. 2019;
Endoscopic ultrasound-guided fine-needle aspiration diagnosis of large cell neuroendocrine carcinoma of the gallbladder and common bile duct: Report of a case
Diagnostic Cytopathology. 2012;41(12):1091-1095