Yousefifard, M.; Askarian-Amiri, S.; Rafiei Alavi, S. N.; Sadeghi, M.; Saberiana, P.; Baratloo, A.; Talebian, M. T. The Efficacy of Ketamine Administration in Prehospital Pain Management of Trauma Patients; A Systematic Review and Meta-Analysis. Arch Acad Emerg Med 2020, 8, e1.