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Turner-Warwick M, McAllister W, Lawrence R, Britten A, Haslam PL.Turner-Warwick M, et al. Among authors: haslam pl.Thorax. 1986 Dec;41(12):903-13. doi: 10.1136/thx.41.12.903.Thorax. 1986.PMID: 3035736Free PMC article.