RT期刊文章SR电子T1黏液溶解的COPD: negotiating a slippery slope towards proof of efficacy JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1701465 DO 10.1183/13993003.01465-2017 VO 50 IS 4 A1 Aaron, Shawn D. YR 2017 UL //www.qdcxjkg.com/content/50/4/1701465.abstract AB