scholarly journals Comparison of peak inspiratory flow rate via the Breezhaler®, Ellipta® and HandiHaler® dry powder inhalers in patients with moderate to very severe COPD: a randomized cross-over trial

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Pablo Altman ◽  
Luis Wehbe ◽  
Juergen Dederichs ◽  
Tadhg Guerin ◽  
Brian Ament ◽  
...  
1999 ◽  
Vol 46 (5) ◽  
pp. 654
Author(s):  
Chang Hyeok An ◽  
Byung Hun Lee ◽  
Yong Bum Park ◽  
Jae Chul Choi ◽  
Hyun Suk Jee ◽  
...  

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