1. Department of Internal Medicine, Maharajgunj Medical Campus Tribhuvan University Institute of Medicine Maharajgunj Kathmandu Nepal
2. Department of Anesthesiology Tribhuvan University Teaching Hospital Maharajgunj Kathmandu Nepal
3. Department of Internal Medicine National University Hospital Singapore Singapore
4. Department of Neurology University of Louisville School of Medicine Louisville Kentucky USA
5. Department of Neurology Tribhuvan University Teaching Hospital Maharajgunj Kathmandu Nepal