TY - RPRT TI - Progressive multifocal leukoencephalopathy. AU - R F JOHNSTON AU - R A GREEN AU - J T HEADINGTON PY - 1963 DO - 10.1001/archinte.1963.03620270079013 UR - https://pubmed.ncbi.nlm.nih.gov/13957907/ ID - 13957907 ER -