TY - RPRT TI - Letter: Diagnostic test for multiple sclerosis. AU - H L Jenssen AU - H Köhler AU - J Gunther AU - H Meyer-Rienecker PY - 1974 DO - 10.1136/bmj.4.5941.407-c UR - https://pubmed.ncbi.nlm.nih.gov/4425900/ ID - 4425900 ER -