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van de Garde EM, Hak E, Souverein PC, Hoes AW, van den Bosch JM, Leufkens HG.van de Garde EM, et al. Among authors: souverein pc.Thorax. 2006 Nov;61(11):957-61. doi: 10.1136/thx.2006.062885. Epub 2006 Jun 29.Thorax. 2006.PMID: 16809409Free PMC article.