作者单位:
Univ Colorado, Sch Med, Dept Emergency Med, Aurora, CO USA
[1]
Thomas Jefferson Univ, Dept Emergency Med, Philadelphia, PA 19107 USA
[2]
Univ Penn, Ctr Clin Epidemiol & Biostat, Philadelphia, PA 19104 USA
[3]
Univ Penn, Dept Emergency Med, Ctr Resuscitat Sci, 423 Guardian Dr,Blockley Hall,Room 408
[4]
发布时间
2017-09-10