[1] Univ Penn, Perelman Sch Med, Pediat, Philadelphia, PA 19104 USA
[2] Maastricht Univ, Sch Hlth Profess Educ, Maastricht, Netherlands
[3] Univ Penn, Neurosci, Philadelphia, PA USA
[4] Univ Calif San Francisco, Pediat, San Francisco, CA USA
[5] Univ Colorado, Pediat Residency Program, Sch Med, Aurora, CO USA
[6] Childrens Hosp Philadelphia, Med Educ, Philadelphia, PA USA
[7] Univ Penn, Perelman Sch Med, Pediat, Philadelphia, PA USA
[8] Univ Minnesota, Masonic Childrens Hosp, Pediat Clin Care, Minneapolis, MN USA
[9] Univ Colorado, Sch Med, Aurora, CO USA
[10] Univ Colorado, Sch Med, Aurora, CO USA
[11] Univ Colorado, Med Educ, Aurora, CO USA
[12] Univ Minnesota, Dept Pediat, Med Sch, Educ, Minneapolis, MN USA
[13] Univ Utah, Pediat, Salt Lake City, UT USA
[14] Univ Colorado, Sch Med, Aurora, CO USA
[15] Univ Minnesota, Med Sch, Pediat, Minneapolis, MN USA
[16] Univ Minnesota, Dept Pediat, Med Sch, Minneapolis, MN USA
[17] Univ Utah, Pediat Residency Program, Salt Lake City, UT USA
[18] Univ Penn, Childrens Hosp Philadelphia, Perelman Sch Med, Neonatol, Philadelphia, PA USA
[19] Childrens Hosp Philadelphia, Educ, Philadelphia, PA USA
[20] Univ Penn, Perelman Sch Med, Pediat, Philadelphia, PA USA
[21] Childrens Hosp Philadelphia, Res Pediat Educ, Philadelphia, PA USA