Tashkin, D P Comparison of the anticholinergic bronchodilator ipratropium bromide with metaproterenol in chronic obstructive pulmonary disease. A 90-day multi-center study. [electronic resource] - The American journal of medicine Nov 1986 - 81-90 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0002-9343 Standard No.: 10.1016/0002-9343(86)90468-7 doi Subjects--Topical Terms: AdultAgedAtropine Derivatives--therapeutic useBronchodilator Agents--adverse effectsClinical Trials as TopicFemaleForced Expiratory VolumeHumansIpratropium--adverse effectsLung Diseases, Obstructive--drug therapyMaleMetaproterenol--adverse effectsMiddle AgedParasympatholytics--adverse effectsSmokingTime FactorsVital Capacity--drug effects