1. Department of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
2. Department of Neurosurgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
3. Department of Pathology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
4. Department of Cardiology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India