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Breukink SO, Strijbos JH, Koorn M, Koëter GH, Breslin EH, van der Schans CP.Breukink SO, et al. Among authors: strijbos jh.Respir Med. 1998 Apr;92(4):676-82. doi: 10.1016/s0954-6111(98)90517-0.Respir Med. 1998.PMID: 9659536Free article.
Kocks JW, Kerstjens HA, Snijders SL, de Vos B, Biermann JJ, van Hengel P, Strijbos JH, Bosveld HE, van der Molen T.Kocks JW, et al. Among authors: strijbos jh.Health Qual Life Outcomes. 2010 Nov 16;8:135. doi: 10.1186/1477-7525-8-135.Health Qual Life Outcomes. 2010.PMID: 21080960Free PMC article.