[1] Manipal Acad Higher Educ, Kasturba Med Coll, Dept Anat, Manipal, Karnataka, India
[2] Manipal Acad Higher Educ, Kasturba Med Coll, Dept Surg, Manipal, Karnataka, India
[3] Dharwad Inst Mental Hlth & Neurosci, Dept Psychiat, Dharwad, Karnataka, India
[4] Paracelsus Med Univ, Dept Neurosurg, Salzburg, Austria
[5] Univ Cartagena, Dept Neurosurg, Cartagena, Colombia
[6] All India Inst Med Sci, Dept Neurosurg, Bhopal, Madhya Pradesh, India