作者单位:
Univ Michigan, Sch Med, Dept Emergency Med, Ann Arbor, MI USA
[1]
Penn State Univ, Dept Hlth Policy & Adm, State Coll, PA USA
[2]
VA Ann Arbor Healthcare Syst, VA Ctr Clin Management Res, POB 130170, Ann Arbor, MI 48113 USA
[3]
Univ Michigan, Sch Med, Dept Internal Med, Ann Arbor, MI USA
[4]
Univ Michigan, Sch Publ Hlth, Dept Hlth Management & Policy, Ann Arbor, MI 48109 USA
[5]
发布时间
2018-07-27