H. Majid, N. . Zehra, A. . Khan, L. Jafri, and A. H. . Khan, “Vitamin D and Calcium Pharmaceutical Supplements: All we Need  to Know to Choose the Right One”, Pak Armed Forces Med J, vol. 74, no. 3, pp. 884–889, Jun. 2024, doi: 10.51253/pafmj.v74i3.7361.