Changes in the bacterial flora of the throat and intestinal tract during prolonged oral administration of penicillin.
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D000284:Administration, Oral; D001432:Bacteriology; D006801:Humans; D007422:Intestines / Q000382:microbiology*; D009333:Neck; D010406:Penicillins; D010614:Pharynx / Q000382:microbiology*
D010406:Penicillins