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Snijders D, Daniels JM, de Graaff CS, van der Werf TS, Boersma WG.Snijders D, et al. Among authors: de graaff cs.Am J Respir Crit Care Med. 2010 May 1;181(9):975-82. doi: 10.1164/rccm.200905-0808OC. Epub 2010 Feb 4.Am J Respir Crit Care Med. 2010.PMID: 20133929Clinical Trial.
van den Berge M, Hop WC, van der Molen T, van Noord JA, Creemers JP, Schreurs AJ, Wouters EF, Postma DS; COSMIC (COPD and Seretide: a Multi-Center Intervention and Characterization) study group.van den Berge M, et al.Respir Res. 2012 Jun 6;13(1):44. doi: 10.1186/1465-9921-13-44.Respir Res. 2012.PMID: 22672621Free PMC article.Clinical Trial.
Snijders D, van der Eerden M, de Graaff C, Boersma W.Snijders D, et al.Respiration. 2010;79(1):46-53. doi: 10.1159/000213757. Epub 2009 Apr 16.Respiration. 2010.PMID: 19372638Free article.
van der Eerden MM, de Graaff CS, Vlaspolder F, Bronsveld W, Jansen HM, Boersma WG.van der Eerden MM, et al. Among authors: de graaff cs.Clin Ther. 2004 Feb;26(2):294-303. doi: 10.1016/s0149-2918(04)90028-8.Clin Ther. 2004.PMID: 15038952
Altenburg J, de Graaff CS, Stienstra Y, Sloos JH, van Haren EH, Koppers RJ, van der Werf TS, Boersma WG.Altenburg J, et al. Among authors: de graaff cs.JAMA. 2013 Mar 27;309(12):1251-9. doi: 10.1001/jama.2013.1937.JAMA. 2013.PMID: 23532241Clinical Trial.
van der Eerden MM, de Graaff CS, Bronsveld W, Jansen HM, Boersma WG.van der Eerden MM, et al. Among authors: de graaff cs.Respir Med. 2004 Sep;98(9):872-8. doi: 10.1016/j.rmed.2004.02.022.Respir Med. 2004.PMID: 15338800Free article.
van der Eerden MM, Vlaspolder F, de Graaff CS, Groot T, Bronsveld W, Jansen HM, Boersma WG.van der Eerden MM, et al. Among authors: de graaff cs.Thorax. 2005 Aug;60(8):672-8. doi: 10.1136/thx.2004.030411.Thorax. 2005.PMID: 16061709Free PMC article.Clinical Trial.