TY - RPRT TI - Multiple sclerosis: plaques caused by 2-step demyelination? AU - R U Schwyzer AU - H Henzi PY - 1983 DO - 10.1016/0306-9877(83)90075-0 UR - https://pubmed.ncbi.nlm.nih.gov/6197618/ ID - 6197618 ER -