[1] Iran Univ Med Sci, Hlth Management Res Inst, Emergency Med Management Res Ctr, Tehran, Iran
[2] Iran Univ Med Sci, Nursing & Midwifery Care Res Ctr, Tehran, Iran
[3] Iran Univ Med Sci, Sch Hlth Management & Informat Sci, Dept Healthcare Serv Management, Tehran, Iran
[4] Iran Univ Med Sci, Hlth Management & Econ Res Ctr, Tehran, Iran
[5] Iran Univ Med Sci, Sch Hlth Management & Informat Sci, Tehran, Iran