作者单位:
Michigan State Univ, Ctr Med Studies, Emergency Med Residency Program, Kalamazoo, MI USA
[1]
Western Michigan Univ, Sch Med, Emergency Med, Kalamazoo, MI 49008 USA
[2]
Western Michigan Univ, MD Sch Med Emergency Med & Pediat, Kalamazoo, MI 49008 USA
[3]
Ohio State Univ, Div Epidemiol, Columbus, OH 43210 USA
[4]
Natl Registry EMTs, Res, Columbus, OH USA
[5]
发布时间
2018-03-07