[Observations on the etiology of acute inflammatory recurrence of chronic bronchitis].
D001991:Bronchitis / Q000382:microbiology*; D002908:Chronic Disease; D006801:Humans; D007709:Klebsiella / Q000302:isolation & purification; D013183:Sputum / Q000382:microbiology; D013296:Streptococcus pneumoniae / Q000302:isolation & purification
Osservazioni sulla etiologia delle riacutizzazioni flogistiche della bronchite cronica.