title: Neonatal colonization with Escherichia coli and the ontogeny of the antibody response.
mesh_terms: D000293:Adolescent; D000375:Aging; D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis*; D002648:Child; D002675:Child, Preschool; D004926:Escherichia coli / Q000254:growth & development*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007422:Intestines / Q000382:microbiology*; D051381:Rats
chemical_list: D000907:Antibodies, Bacterial