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Hubbard M, Masters IB, Williams GR, Chang AB.Hubbard M, et al. Among authors: masters ib.Eur Respir J. 2000 Dec;16(6):1205-7. doi: 10.1034/j.1399-3003.2000.16f29.x.Eur Respir J. 2000.PMID: 11292128Free article.