Ch, M. K., Z. A. Syed, and M. Younus. “PREVALENCE OF HUMAN IMMUNODEFICIENCY VIRUS (HIV) INFECTION IN PATIENTS WITH PULMONARY TUBERCULOSIS”. Pakistan Journal of Chest Medicine, vol. 15, no. 3, Sept. 2015, pp. 18-21, https://pjcm.net/index.php/pjcm/article/view/317.