Jahan N, Kumar A, Nigar A, Ahmad S, Khatoon R, Chaudhary N. Seroprevalence of hepatitis B virus surface antigen among pregnant females attending antenatal clinic at a tertiary care hospital in North India. Int J Res Med Sci [Internet]. 2019 Dec. 25 [cited 2025 Nov. 13];8(1):147-52. Available from: https://www.msjonline.org/index.php/ijrms/article/view/7323