TY - RPRT TI - Evoked potential changes in clinically definite multiple sclerosis: a two year follow up study. AU - J C Walsh AU - R Garrick AU - J Cameron AU - J G McLeod PY - 1982 DO - 10.1136/jnnp.45.6.494 UR - https://pubmed.ncbi.nlm.nih.gov/7119812/ ID - 7119812 ER -