Chronic bronchitis and emphysema; significance of the bacterial flora in the sputum.
D001432:Bacteriology; D001991:Bronchitis / Q000382:microbiology*; D029481:Bronchitis, Chronic; D004646:Emphysema; D006801:Humans; D011656:Pulmonary Emphysema / Q000382:microbiology*; D013183:Sputum / Q000382:microbiology*
BRONCHITIS/bacteriology; EMPHYSEMA, PULMONARY/bacteriology; SPUTUM/bacteriology