Sadaf, R., T. Munir, S. Farrukh, and S. Abbasi. “Prevalence of Latent Tuberculosis Infection in Healthcare Workers in Tertiary Care Hospitals of Pakistan: Latent Tuberculosis in Healthcare Workers”. Pakistan Journal of Medical Sciences, Vol. 36, no. 2, Dec. 2019, doi:10.12669/pjms.36.2.936.