Shahzad, MI, S Ayyaz, GM Humayun, MH Kamran, LA Dogar, AA Shaheen, AA Kazmi, A Hafeez, and MZ Saheen. 2015. “A COMPARISON OF DRUG RESISTANCE PATTERN IN CATEGORY-I FAILURE VERSUS CATEGORY-I RELAPSE PULMONARY TB PATIENTS ATTENDING A TERTIARY CARE HOSPITAL IN SOUTH PUNJAB, PAKISTAN. IS WHO CATEGORY-II ATT REGIMEN APPROPRIATE?”. Pakistan Journal of Chest Medicine 19 (1). https://pjcm.net/index.php/pjcm/article/view/47.