报告需要，想征下面这一篇论文，请学长姐多多帮忙
http://www.ncbi.nlm.nih.gov/pubmed/23473596
Expert Rev Clin Pharmacol. 2013 Mar;6(2):197-219. doi: 10.1586/ecp.13.2.
The asthma-chronic obstructive pulmonary disease overlap syndrome:
pharmacotherapeutic considerations.
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