title: Multiple sclerosis and exposure to household dogs. Preliminary observations.
mesh_terms: D000818:Animals; D004217:Distemper Virus, Canine; D004285:Dogs / Q000382:microbiology; D006801:Humans; D009103:Multiple Sclerosis / Q000209:etiology / Q000382:microbiology*; D015047:Zoonoses / Q000382:microbiology