Kang, Jian <br/><br/>
Current situation of asthma-COPD overlap syndrome (ACOS) in Chinese patients older than 40 years with airflow limitation: rationale and design for a multicenter, cross-sectional trial (study protocol).  [electronic resource] 

 -  Journal of thoracic disease  Dec 2016 
 - 3744-3751 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>2072-1439 
<br/><br/><label>Standard No.: </label>10.21037/jtd.2016.12.108  doi