1 Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India. Electronic address: flutemist@gmail.com.
2 Department of Neurosurgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India.
3 Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India.
4 Department of Neurosurgery, All India Institute of Medical Sciences, Saket Nagar, Madhya Pradesh, India.