1. Tribhuvan University, Institute of Medicine Maharajgunj Medical Campus, , Maharajgunj, Kathmandu 44606, Nepal
2. Nepalese Army Institute of Health Sciences College of Medicine , Bhandarkhal, Sanobharyang, Kathmandu 44601, Nepal
3. Tribhuvan University Teaching Hospital Department of Neurology, , Maharagunj, Kathmandu 44606, Nepal