title: [Viral etiology in progressive multifocal leucoencephalopathy].
mesh_terms: D000818:Animals; D000882:Haplorhini; D006801:Humans; D007968:Leukoencephalopathy, Progressive Multifocal / Q000276:immunology / Q000382:microbiology* / Q000473:pathology; D014777:Virus Diseases / Q000150:complications*