1. Department of Community Medicine, Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research (SDUAHER), Tamaka, Kolar 563101, India
2. Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
3. Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences, Bibinagar, Hyderabad 508126, India
4. Department of Community Medicine, GMERS Medical College, Gotri, Vadodara 390021, India
5. District Health Office, Kolar 536101, India
6. National Institute for Tuberculosis Research and Respiratory Diseases, New Delhi 110030, India
7. Centre for Operational Research, International Union against Tuberculosis and Lung Disease, 2 Rue Jean Lantier, 75001 Paris, France