RT Journal Article SR Electronic T1 Polymorphisms in the Type IV Collagen Alpha3 Gene and the Risk of COPD JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society DO 10.1183/09031936.00076207 A1 Kim, K.M. A1 Park, S.H. A1 Kim, J.S. A1 Lee, W.K. A1 Cha, S.I. A1 Kim, C.H. A1 Kang, Y.M. A1 Jung, T.H. A1 Kim, I.S. A1 Park, J.Y. YR 2008 UL http://erj.ersjournals.com/content/early/2008/04/02/09031936.00076207.abstract AB