Kamran, Sultan Mehmood, et al. “FREQUENCY OF ACTIVE AND LATENT PULMONARY TUBERCULOSIS IN APPARENTLY HEALTHY ASYMPTOMATIC YOUNG PATIENTS HAVING SUBTLE NON-SPECIFIC X RAY CHEST ABNORMALITIES”. Pakistan Armed Forces Medical Journal, vol. 70, no. 2, Apr. 2020, pp. 373-78, https://pafmj.org/PAFMJ/article/view/4192.