TY - JOUR T1 - Reason for hope: the advent of disease-modifying therapies in multiple sclerosis JF - Canadian Medical Association Journal JO - CMAJ SP - 83 LP - 84 VL - 162 IS - 1 AU - Paul W. O'Connor Y1 - 2000/01/11 UR - http://www.cmaj.ca/content/162/1/83.abstract ER -