Pieper Dawid, Mathes Tim, Neugebauer Edmund, Eikermann Michaela
Institute for Research in Operative Medicine, Faculty of Health, School of Medicine, Witten/Herdecke University, Cologne, Germany.
J Am Coll Surg. 2013 May;216(5):1015-1025.e18. doi: 10.1016/j.jamcollsurg.2012.12.049. Epub 2013 Mar 22.