RT期刊文章SR电子T1气道smooth muscle care about platelet-activating factor? JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 915 OP 918 VO 5 IS 8 A1 Kroegel, C YR 1992 UL //www.qdcxjkg.com/content/5/8/915.abstract AB