[1] Keck Sch Med, Dept Surg, Los Angeles, CA 90089 USA
[2] Keck Sch Med, Off Curriculum, Los Angeles, CA 90089 USA
[3] Keck Sch Med, Dept Med Educ, Los Angeles, CA 90089 USA
[4] SUNY Stony Brook, Sch Med, Off Educ Dev & Evaluat, Stony Brook, NY 11794 USA