Chlamydia trachomatis in premature infants.
D002690:Chlamydia Infections / Q000175:diagnosis*; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000175:diagnosis*; D011022:Pneumonia, Rickettsial / Q000175:diagnosis*