Pragmatic randomized controlled trial for stepping down of asthma controller treatment in patients controlled with low dose inhaled corticosteroid and long-acting beta2 agonist: SIGMA study

Author(s):  
Sae-Hoon Kim ◽  
Taehoon Lee ◽  
An-Soo Jang ◽  
Chan Sun Park ◽  
Jae-Woo Jung ◽  
...  
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