Peter Cram1. 1. Division of General Internal Medicine, Toronto General Hospital, 200 Elizabeth Street, Eaton 14th Floor, Toronto, ON, M5G 2C4, Canada, peter.cram@uhn.ca.
Authors: David M Shahian; Robert E Wolf; Lisa I Iezzoni; Leslie Kirle; Sharon-Lise T Normand Journal: N Engl J Med Date: 2010-12-23 Impact factor: 91.245
Authors: Seth S Leopold; Lee Beadling; Matthew B Dobbs; Mark C Gebhardt; Paul A Lotke; Clare M Rimnac; Montri D Wongworawat Journal: Clin Orthop Relat Res Date: 2013-09-21 Impact factor: 4.176