[1] Bethany Hosp Shillong, Dept Neurosurg, Nongrim Hills, Shillong, Meghalaya, India
[2] North Eastern Indira Gandhi Reg Inst Hlth & Med Sc, Dept Neurosurg, Shillong, Meghalaya, India
[3] Bethany Hosp Shillong, Nongrim Hills, Shillong 793003, Meghalaya, India