1. Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
2. Department of Microbiology, All India Institute of Medical Sciences (AIIMS) Bilaspur, Himachal Pradesh, India
3. Advanced Eye Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
4. Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India