title: Variola minor. A preliminary report from the Birmingham Hospital region.
mesh_terms: D046508:Culture Techniques; D003937:Diagnosis, Differential; D004739:England; D006801:Humans; D005779:Immunodiffusion; D008854:Microscopy, Electron; D012899:Smallpox / Q000175:diagnosis* / Q000453:epidemiology*; D012901:Variola virus / Q000302:isolation & purification