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Weinshenker, BG, G. Rice, J. Noseworthy, W. Carriere, J. Baskerville, and G. Ebers. The Natural History of Multiple Sclerosis: A Geographically Based Study. 4. Applications to Planning and Interpretation of Clinical Therapeutic Trials. 1991.

Weinshenker, BG, et al. The Natural History of Multiple Sclerosis: A Geographically Based Study. 4. Applications to Planning and Interpretation of Clinical Therapeutic Trials. 1991.