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Sandroni P, Vernino S, Klein CM, Lennon VA, Benrud-Larson L, Sletten D, Low PA.Sandroni P, et al.Arch Neurol. 2004 Jan;61(1):44-8. doi: 10.1001/archneur.61.1.44.Arch Neurol. 2004.PMID: 14732619