Baldawa S S, Bele K, Menon G, George C V, Abraham M, Nair S
Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India.
Clin Neuroradiol. 2012 Sep;22(3):257-61. doi: 10.1007/s00062-011-0105-2. Epub 2011 Sep 9.