Singh, A. , Ahmad, R., Sinha, S., Haq, M.A. , Narwaria, M. , Haque, M. , Kumar, S. and Sanghani, N. 2023. One Anastomosis Gastric Bypass Surgery: Consequences Over Ascorbic Acid, Cobalamin, Calciferol, and Calcium. Bangladesh Journal of Medical Science. 22, 3 (Jun. 2023), 695–708. DOI:https://doi.org/10.3329/bjms.v22i3.66965.