Gutt C N, Kuntz C, Schmandra T, Wunsch A, Heinz P, Bouvy N, Bessler M, Sänger P, Bonjer J, Allendorf J, Jacobi C A, Whelan R
Department of Surgery, Johann-Wolfgang-Goethe University, Frankfurt, Germany.
Surg Endosc. 1998 Aug;12(8):1096-8. doi: 10.1007/s004649900790.