[1] Virginia Commonwealth Univ, Sch Med, 1201E Marshall St MMEC 4-214,Box 980565, Richmond, VA 23298 USA
[2] Univ Michigan, Sch Med, Dept Learning Hlth Sci, Ann Arbor, MI 48109 USA
[3] Zucker Sch Med Hofstra Northwell, Hempstead, NY USA
[4] Vanderbilt Univ, Sch Med, 221 Kirkland Hall, Nashville, TN 37235 USA
[5] Univ Michigan, Sch Med, Ann Arbor, MI 48109 USA
[6] Univ Cincinnati, Coll Med, Cincinnati, OH 45221 USA