An attempt to demonstrate a viral etiology for chronic bronchitis.
HENNESSY
A V
AV
D001991:Bronchitis / Q000821:virology*; D029481:Bronchitis, Chronic; D006801:Humans; D012141:Respiratory Tract Infections / Q000821:virology*; D013183:Sputum / Q000821:virology*
BRONCHITIS/virology; RESPIRATORY TRACT INFECTIONS/virology; SPUTUM/virology