Diener Markus K, Büchler Markus W
Study Centre of the German Surgical Society and Department of General, Visceral and Transplantation Surgery, University of Heidelberg, 69120 Heidelberg, Germany.
Lancet. 2013 Sep 28;382(9898):1076-7. doi: 10.1016/S0140-6736(13)61166-6.