RT SR电子T1条Confrontin》杂志上g COPD International Survey: patients hardly know they have COPD JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 793 OP 794 DO 10.1183/09031936.02.00404402 VO 20 IS 4 A1 Dekhuijzen, P.N.R. YR 2002 UL //www.qdcxjkg.com/content/20/4/793.abstract AB