[1] Univ Calif San Francisco, Div Hosp Med, San Francisco, CA 94143 USA
[2] Univ Calif San Francisco, Ctr Clin Informat & Improvement Res, San Francisco, CA 94143 USA
[3] Erasmus MC, Inst Med Educ Res Rotterdam, Rotterdam, Netherlands
[4] Univ Minnesota, Minneapolis, MN USA