Utter Garth H, Cox Ginger L, Owens Pamela L, Romano Patrick S
Department of Surgery, University of California, Davis Medical Center, Sacramento, CA 95817, USA.
J Am Coll Surg. 2013 Sep;217(3):516-26. doi: 10.1016/j.jamcollsurg.2013.04.029. Epub 2013 Jul 25.