Das, C., Saha, A., Hossain, F., Rahman, M. M., Hasan, R., & Alam, A. T. (2016). Efficacy of endoscopic retrograde cholangiopancreato-graphy in elderly patients. Bangladesh Medical Journal, 45(1), 44–46. https://doi.org/10.3329/bmj.v45i1.28967