title: A bacteriological study of the upper respiratory tract in normal families.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002175:Candida / Q000302:isolation & purification; D002353:Carrier State; D002648:Child; D002675:Child, Preschool; D004423:Ear / Q000382:microbiology; D006801:Humans; D009615:Nocardia / Q000302:isolation & purification; D009666:Nose / Q000382:microbiology; D014066:Palatine Tonsil / Q000382:microbiology; D010614:Pharynx / Q000382:microbiology; D011511:Proteus / Q000302:isolation & purification; D012137:Respiratory System / Q000382:microbiology*; D013210:Staphylococcus / Q000302:isolation & purification; D013291:Streptococcus / Q000302:isolation & purification