Table A1.

Reasons for study exclusion.

Authors (Year)	Title	Reasons of Exclusion
Heimback Julie K. (2011) [1]	Dodging the Bullet: Incidental Hilar Cholangiocarcinoma in Patients Undergoing Liver Transplantation	Not compliant with inclusion criteria
Patkowski et al. (2014) [2]	Poor Outcomes After Liver Transplantation in Patients with Incidental Cholangiocarcinoma Irrespective of Tumor Localization	Results duplication
Krasnodębski et al. (2020) [3]	Analysis of Patients with Incidental Perihilar Cholangiocarcinoma: An Old and a Persistent Burden for Liver Transplantation	Results duplication
Hara et al. (2021) [4]	Incidental intrahepatic cholangiocarcinoma in patients undergoing liver transplantation: A multicenter study in Japan	Not compliant with inclusion criteria