Schenarts Paul J, Termuhlen Paula M, Pasley Jason, Rose Joel S, Friedell Mark L
Department of Surgery, East Carolina University, Greenville, North Carolina 27858, USA.
J Surg Educ. 2011 May-Jun;68(3):239-45. doi: 10.1016/j.jsurg.2011.01.001. Epub 2011 Mar 11.