title: Factors affecting neonatal E. coli K1 rectal colonization.
mesh_terms: D000942:Antigens, Bacterial; D004926:Escherichia coli / Q000254:growth & development* / Q000276:immunology / Q000302:isolation & purification; D006801:Humans; D007231:Infant, Newborn; D007362:Intensive Care Units; D009725:Nurseries, Hospital; D012007:Rectum / Q000382:microbiology*
chemical_list: D000942:Antigens, Bacterial