Vinod, V. S., L. S. George, A. Joy, M. M. Mathew, V. K., A. Kunoor, and A. Kumar. “Proportion of Pulmonary Tuberculosis Cases Diagnosed at Different Levels of Health Care across Fourteen Districts of Kerala”. International Journal Of Community Medicine And Public Health, vol. 7, no. 9, Aug. 2020, pp. 3636-9, doi:10.18203/2394-6040.ijcmph20203935.