1. Department of Pulmonary Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India
2. Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
3. Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
4. Department of Histopathology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
5. Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India