Ibrahim George M, Ebinu Julius O, Rubin Laurence A, de Tilly Lyne Noel, Spears Julian
Division of Neurosurgery, Neuroradiology and Rheumatology, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.
Can J Neurol Sci. 2011 Nov;38(6):918-20. doi: 10.1017/s031716710001252x.