Qureshi M Muddasir, Cudkowicz Merit E, Zhang Hui, Raynor Elizabeth
Neurology Clinical Trials Unit, Department of Neurology, Massachusetts General Hospital, Charlestown, MA 02129, USA.
Neurology. 2007 Jan 2;68(1):76-7. doi: 10.1212/01.wnl.0000250444.30622.ee.