Hosseininejad, M.; Aminiahidashti, H.; Pashaei, S. M.; Goli Khatir, I.; Montazer, S. H.; Bozorgi, F.; Mahmoudi, F. Determinants of Prolonged Length of Stay in the Emergency Department: A Mixed Method Study from Iran. Arch Acad Emerg Med 2017, 5, e53.