Muthusubramanian Vikram, Pande Anil, Vasudevan Madhabushi Chakravarthy, Ravi Ramamurthi
Post Graduate Institute of Neurological Surgery, Dr Achanta Lakshmipathi Neurosurgical Centre, VHS Hospital, Chennai, India.
Br J Neurosurg. 2007 Feb;21(1):43-4. doi: 10.1080/02688690701231642.