Authors: KARPEL JP KOTCH A ZINNY I PESIN J ALLEYNE W

Citation: Jp. Karpel et al., A COMPARISON OF INHALED IPRATROPIUM, ORAL THEOPHYLLINE PLUS INHALED BETA-AGONIST, AND THE COMBINATION OF ALL 3 IN PATIENTS WITH COPD, Chest, 105(4), 1994, pp. 1089-1094