Umbilical tetanus in Brazil.
D001938:Brazil; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology*; D012959:Socioeconomic Factors; D013742:Tetanus / Q000453:epidemiology* / Q000235:genetics / Q000401:mortality; D014472:Umbilicus