Comparison of ipratropium bromide and salbutamol in a long-term trial in asthmatic and bronchitic patients in a cold climate.
D000368:Aged; D000420:Albuterol / Q000627:therapeutic use*; D001249:Asthma / Q000188:drug therapy*; D001286:Atropine Derivatives / Q000627:therapeutic use*; D001991:Bronchitis / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D003081:Cold Climate; D004341:Drug Evaluation; D006801:Humans; D009241:Ipratropium / Q000627:therapeutic use*; D008875:Middle Aged; D013997:Time Factors
D001286:Atropine Derivatives; D009241:Ipratropium; D000420:Albuterol