TY - RPRT TI - Viruses in multiple sclerosis? AU - E J Field AU - S Cowshall AU - H K Narang AU - T M Bell PY - 1972 DO - 10.1016/s0140-6736(72)91714-x UR - https://pubmed.ncbi.nlm.nih.gov/4114532/ ID - 4114532 ER -