More than meets the eye.
D000367:Age Factors; D000907:Antibodies, Bacterial / Q000032:analysis; D002690:Chlamydia Infections / Q000150:complications*; D002692:Chlamydia trachomatis / Q000302:isolation & purification; D006801:Humans; D007223:Infant; D012141:Respiratory Tract Infections / Q000209:etiology* / Q000382:microbiology
D000907:Antibodies, Bacterial