title: [On the question of the frequency of post-vaccinal complications].
mesh_terms: D000017:ABO Blood-Group System; D004673:Encephalomyelitis, Acute Disseminated / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D012900:Smallpox Vaccine / Q000009:adverse effects*; D014611:Vaccination / Q000009:adverse effects*; D014615:Vaccinia / Q000453:epidemiology / Q000209:etiology*
chemical_list: D000017:ABO Blood-Group System; D012900:Smallpox Vaccine
vernacular_title: K voprosu o chastote postvaktsinal'nykh oslozhneniĭ.