1. ICMR-National Institute for Research in Tuberculosis, Chennai 600031, India
2. B.J. Medical College and Hospital, Ahmedabad 380016, India
3. Rajan Babu Institute of Pulmonary Medicine and Tuberculosis, New Delhi 110009, India
4. Government Hospital of Thoracic Medicine, Chennai 600047, India
5. National Institute for Tuberculosis and Respiratory Diseases, New Delhi 110030, India
6. Grand TB Hospital, Mumbai 400015, India