1. Department of Radiotherapy, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
2. Department of Radiotherapy, R. G. Kar Medical College and Hospital, Kolkata, West Bengal, India
3. Department of Radiotherapy, All India Institute of Medical Sciences, Deoghar, Jharkhand, India
4. Department of Physiology, Diamond Harbour Government Medical College and Hospital, Diamond Harbour, West Bengal, India