Fig. 1From: Development and validation of a gradient boosting machine to predict prognosis after liver resection for intrahepatic cholangiocarcinomaStudy flowchart and methodology. A Flow chart of the study population. B Pipeline to train, validate and test the gradient boosting machine. ICC, Intrahepatic cholangiocarcinoma; FAHNJMU, First Affiliated Hospital of Nanjing Medical University; SEER, Surveillance, Epidemiology, and End Results; AJCC, American Joint Committee on CancerBack to article page