Time of separation of the umbilical cord and its relation to infection in infancy.
D004739:England; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007239:Infections / Q000453:epidemiology / Q000209:etiology*; D013997:Time Factors; D014470:Umbilical Cord