PT - JOURNAL ARTICLE AU - A. Zandvoort AU - D.S. Postma AU - M.R. Jonker AU - J.A. Noordhoek AU - J.T.W.M. Vos AU - Y.M. van der Geld AU - W. Timens TI - Altered expression of the Smad signalling pathway: implications for COPD pathogenesis AID - 10.1183/09031936.06.00078405 DP - 2006 May 17 TA - European Respiratory Journal 4099 - http://erj.ersjournals.com/content/early/2006/05/17/09031936.06.00078405.short 4100 - http://erj.ersjournals.com/content/early/2006/05/17/09031936.06.00078405.full