scholarly journals A US database study characterizing patients initiating a budesonide–formoterol combination versus tiotropium bromide as initial maintenance therapy for chronic obstructive pulmonary disease

Author(s):  
David Kern ◽  
Setareh Williams ◽  
Ozgur Tunceli ◽  
Catrin Wessman ◽  
Siting Zhou ◽  
...  
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