RAFIQUE , Z., IFTIKHAR , F., NIAZI , A., MEHBOOB , M., BHATTI , A. and NAZ, L. (2024) “H PYLORI INFECTION AND ASSOCIATED VITAMIN B12 DEFICIENCY”, Biological and Clinical Sciences Research Journal, 2024(1), p. 1370. doi: 10.54112/bcsrj.v2024i1.1370.