1. Department of Ophthalmology, Bisheshwar Prasad Koirala Institute of Health Sciences (BPKIHS), P.O. Box 7053, Kathmandu, Dharan, Nepal
2. Department of Pathology, Bisheshwar Prasad Koirala Institute of Health Sciences (BPKIHS), P.O. Box 7053, Kathmandu, Dharan, Nepal