1. Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
2. Centre for Operational Research, International Union against Tuberculosis and Lung Disease, Paris, France
3. Department of Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
4. Department of Community Medicine, Sri Manakula Vinayagar Medical College, and Hospital, Puducherry, India