title: Virus-like structures in muscle in chronic polymyositis.
mesh_terms: D000293:Adolescent; D001706:Biopsy; D002908:Chronic Disease; D005110:Extracellular Space; D005260:Female; D006801:Humans; D007181:Inclusion Bodies, Viral; D008854:Microscopy, Electron; D009220:Myositis / Q000382:microbiology* / Q000473:pathology; D010252:Paramyxoviridae