Retheesh, K, Althaf Ali, Mathew Valamparambil, K Puhalenthi, and T Radhakrishnan. 2009. “A Cross Sectional Study on the Effectiveness of RNTCP - DOT Providers in Thiruvananthapuram, Kerala”. Kerala Medical Journal 2 (4), 105-11. https://doi.org/10.52314/kmj.2009.v2i4.145.