Effects of periodontal treatment on lung function and exacerbation frequency in patients with chronic obstructive pulmonary disease and chronic periodontitis: A 2-year pilot randomized controlled trial

2014 ◽  
Vol 41 (6) ◽  
pp. 564-572 ◽  
Author(s):  
Xuan Zhou ◽  
Jing Han ◽  
Zhiqiang Liu ◽  
Yiqing Song ◽  
Zuomin Wang ◽  
...  
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