F. Z. . KHAN, fatima fasih, S. . BAIG, D. A. FATIMA, E. BIBI, and D. IQBAL, “Frequency of Human Immune Deficiency Virus (HIV) Infections at Tertiary Care Hospital of Karachi from 2017-2019”, PJMD, vol. 11, no. 3, pp. 17–23, May 2024.