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Ellis CM, Lemmens G, Williams SC, Simmons A, Dawson J, Leigh PN, Chaudhuri KR.Ellis CM, et al. Among authors: chaudhuri kr.Neurology. 1997 Aug;49(2):438-44. doi: 10.1212/wnl.49.2.438.Neurology. 1997.PMID: 9270574