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Schermer T, van Weel C, Barten F, Buffels J, Chavannes N, Kardas P, Østrem A, Schneider A, Yaman H.Schermer T, et al.Qual Prim Care. 2008;16(5):363-77.Qual Prim Care. 2008.PMID: 18973718
Schermer T, Chavannes N, Dekhuijzen R, Wouters E, Muris J, Akkermans R, van Schayck O, van Weel C.Schermer T, et al.Respir Med. 2009 Apr;103(4):542-51. doi: 10.1016/j.rmed.2008.11.003. Epub 2009 Jan 9.Respir Med. 2009.PMID: 19138505Free article.Clinical Trial.
Chavannes NH, Grijsen M, van den Akker M, Schepers H, Nijdam M, Tiep B, Muris J.Chavannes NH, et al.Prim Care Respir J. 2009 Sep;18(3):171-6. doi: 10.3132/pcrj.2009.00003.Prim Care Respir J. 2009.PMID: 19142557Free PMC article.Clinical Trial.
Schermer T, Leenders J, in 't Veen H, van den Bosch W, Wissink A, Smeele I, Chavannes N.Schermer T, et al.Fam Pract. 2009 Dec;26(6):524-31. doi: 10.1093/fampra/cmp063. Epub 2009 Oct 8.Fam Pract. 2009.PMID: 19815674