Mallick, U., M. O. Faruq, S. Ishaque, A. Ahsan, K. Fatema, F. Ahmed, M. Asaduzzaman, M. M. Shaikh, and - Mahfuzzaman. “Early Endoscopic Findings in Patients With Upper Gastrointestinal Bleeding in Bangladesh”. Bangladesh Critical Care Journal, Vol. 3, no. 2, Sept. 2015, pp. 60-62, doi:10.3329/bccj.v3i2.25112.