An analysis of references used for the Orthopaedic In-Training Examination: what are their levels of evidence and journal impact factors?
Haughom BD, Goldstein Z, Hellman MD, Yi PH, Frank RM, Levine BR. An analysis of references used for the Orthopaedic In-Training Examination: what are their levels of evidence and journal impact factors? Clin Orthop Relat Res. 2014 Dec; 472(12):4024-32.