Kemunto, L. M. ., P. . Ursula, P. . Ngugi, and D. M. . Ondari. “Intensified Tuberculosis Case Finding Using the WHO - Symptom Screening Tool and Sputum Microscopy Versus Genexpert Among HIV-Positive Adult Outpatients Visiting a Tertiary Hospital in Nairobi County, Kenya”. East African Medical Journal, vol. 98, no. 11, Jan. 2022, pp. 4265-74, https://www.ajol.info/index.php/eamj/article/view/219621.