Authors: LEVIN DC LITTLE KS LAUGHLIN KR GALBRAITH JM GUSTMAN PM MURPHY D KRAM JA HARDIE G REUTER C OSTRANSKY D MCFARLAND K PETTY TL SILVERS W RENNARD SI MUELLER M REPSHER LH ZUWALLACK RL VALE R

Citation: Dc. Levin et al., ADDITION OF ANTICHOLINERGIC SOLUTION PROLONGS BRONCHODILATOR EFFECT OF BETA(2) AGONISTS IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY-DISEASE, The American journal of medicine, 100, 1996, pp. 40-48