Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Popa, Călin" or (type any "bookEditor issueEditor" and editor="Popa, Călin") Add to list Journal Article A1 open access Education and training of surgical residents in upper gastrointestinal surgery : a European survey Călin Popa, Diana Schlanger, Alberto Aiolfi, Moustafa Elshafei, Dimitrios Theodorou, Ognjan Skrobic, Aleksandar Simic, Suzanne Gisberz, Davide Bona, Luigi Bonavina, et al. (2025) UPDATES IN SURGERY.