1. Pathology of Biliary Tract Cancers
   Claudio Luchini et al, 2022, The IASGO Textbook of Multi-Disciplinary Management of Hepato-Pancreato-Biliary Diseases CrossRef
2. Special Variants of Cholangiocarcinoma
   Arthur Zimmermann, 2016, Tumors and Tumor-Like Lesions of the Hepatobiliary Tract CrossRef
3. Special Variants of Cholangiocarcinoma
   Arthur Zimmermann, 2017, Tumors and Tumor-Like Lesions of the Hepatobiliary Tract CrossRef
4. Cholangiocarcinoma
   Samantha Sarcognato et al, 2021, Pathologica CrossRef
5. A case of pancreatic cancer with components of invasive micropapillary carcinoma
   Hirohito NARUSE et al, 2015, Suizo CrossRef