Regional Magnetic Resonance Imaging Lesion Burden and Cognitive Function in Multiple SclerosisReisa A. Sperling, Howard L. Weiner, Charles R.G. Guttmann et al.|Archives of Neurology|2001Cited by 219
Oral contraceptives and the incidence of multiple sclerosisMiguel A. Hernán, Alberto Ascherio, Marika Hohol et al.|Neurology|2000Cited by 149