Ahmed, E. U., R. Alam, F. Alam, C. K. Ghosh, S. K. Dey, H. Masud, D. S. Ahmed, M. Bhuiyan, A. R. Miah, P. K. Roy, and A. Raihan. “Comparative Study Between Metronidazole, Amoxycilin, Omeprazole Based Therapy and Levofloxacin, Amoxycilin, Omeprazole Based Therapy for Helicobactor Pylori Eradication in Peptic Ulcer Disease”. Journal of Chittagong Medical College Teachers' Association, vol. 20, no. 2, July 2010, pp. 29-32, doi:10.3329/jcmcta.v20i2.5623.