1 Department of Surgery, Division of Neurosurgery, B.P. Koirala Institute of Health Sciences, Dharan, Nepal. Electronic address: Dahalalok015@gmail.com.
2 Department of Surgery, B.P. Koirala Institute of Health Sciences, Dharan, Nepal.
3 Department of Surgery, Division of CTVS, B.P. Koirala Institute of Health Sciences, Dharan, Nepal.
4 Department of Radiology, National Academy of Medical Sciences, Bir Hospital, Mahabouddha, Kathmandu, Nepal.