A Double-Blind Crossover Study Comparing the Safety and Efficacy of Three Weeks of Flu/Sal 250/50 bid Plus Albuterol 180 ug prn q4 hours to Flu/Sal 250/50 bid Plus Albuterol/Ipratropium Bromide 2 puffs prn q4 hours in Patients with Chronic Obstructive Pulmonary Disease
2008 ◽
Vol 5
(4)
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pp. 221-227
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2016 ◽
Vol 3
(2)
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pp. 71-80
2003 ◽
Vol 23
(3)
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pp. 181-191
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2003 ◽
Vol 64
(5)
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pp. 317-326
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1996 ◽
Vol 37
(suppl A)
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pp. 93-104
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