Letter: Epidemiological aspects of neonatal necrotizing enterocolitis.
D001769:Blood / Q000382:microbiology; D002404:Catheterization; D004761:Enterocolitis, Pseudomembranous / Q000453:epidemiology* / Q000382:microbiology; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology*; D014472:Umbilicus / Q000382:microbiology