Rahman, M. M., R. Panday, K. U. Sohel, Z. Ahmed, S. Khanam, M. S. Sarker, P. Hasan, and M. K. Islam. “Etiological Evaluation of Acute Confusional State in Elderly (≥60 Years) Patients”. Journal of Medicine, vol. 22, no. 1, Jan. 2021, pp. 41-45, doi:10.3329/jom.v22i1.51390.