title: Dose response of ipratropium assessed by two methods.
mesh_terms: D001249:Asthma / Q000188:drug therapy*; D001286:Atropine Derivatives / Q000008:administration & dosage* / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005541:Forced Expiratory Volume; D006801:Humans; D009241:Ipratropium / Q000008:administration & dosage* / Q000627:therapeutic use*; D008297:Male; D011897:Random Allocation
chemical_list: D001286:Atropine Derivatives; D009241:Ipratropium