Nagpal, M., P. Devgun, and N. Chawla. “Co-Morbidities and Addictions Affecting Treatment Outcome in New Smear Positive Cases in Amritsar City, Punjab, India”. International Journal Of Community Medicine And Public Health, vol. 4, no. 1, Dec. 2016, pp. 110-4, doi:10.18203/2394-6040.ijcmph20164721.