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Fahrner, René; Turina, Matthias; Neuhaus, Valentin; Schöb, Othmar (2012). Laparoscopic cholecystectomy as a teaching operation: comparison of outcome between residents and attending surgeons in 1,747 patients. Langenbeck's archives of surgery, 397(1), pp. 103-110. Springer-Verlag 10.1007/s00423-011-0863-y
