Channa, Abid Ali, Nazia Jameel, and Rehana Khalil. “Prevalence of Human Immunodeficiency Virus Infection Among the Diagnosed Tuberculosis Patients in Karachi, Pakistan”. International Journal of Research in Medical Sciences 4, no. 3 (December 27, 2016): 789–793. Accessed March 20, 2023. https://www.msjonline.org/index.php/ijrms/article/view/588.