H. Aminiahidashti, F. Bozorgi, S. H. Montazer, M. Baboli, and A. Firouzian, “Comparison of APACHE II and SAPS II Scoring Systems in Prediction of Critically ill Patients’ Outcome”, Arch Acad Emerg Med, vol. 5, no. 1, p. e4, Jan. 2017.