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Wijkstra PJ, van der Mark TW, Boezen M, van Altena R, Postma DS, Koëter GH.Wijkstra PJ, et al. Among authors: koeter gh.Chest. 1995 Mar;107(3):652-6. doi: 10.1378/chest.107.3.652.Chest. 1995.PMID: 7874932
Wijkstra PJ, van der Mark TW, Kraan J, van Altena R, Koëter GH, Postma DS.Wijkstra PJ, et al. Among authors: koeter gh.Eur Respir J. 1996 Jan;9(1):104-10. doi: 10.1183/09031936.96.09010104.Eur Respir J. 1996.PMID: 8834342Free article.