1. Department of General surgery, All India Institute of Medical Sciences, Rishikesh, India
2. Department of Physiology, All India Institute of Medical Sciences, Rishikesh, India
3. Department of Pathology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
4. Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
5. Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India