1. ICMR‐ National Institute for Research in Tuberculosis Chennai India
2. ICMR‐ National Institute for Research in Tuberculosis Madurai India
3. ICMR‐ National Institute for Research in Tuberculosis Vellore India
4. Institute of Thoracic Medicine Chennai India
5. Government Hospital for Thoracic Medicine Chennai India
6. Revised National TB Control Programme Chennai India
7. Government Rajaji Hospital Madurai India
8. Government Vellore Medical College Hospital Vellore India
9. World Health Organization Geneva Switzerland