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Southcott AM, Hemingway I, Lorimer S, Sugars K, Hellewell PG, Black CM, Jeffery PK, Gearing AJ, Haskard DO, du Bois RM.Southcott AM, et al.Eur Respir J. 1998 Jan;11(1):91-8. doi: 10.1183/09031936.98.11010091.Eur Respir J. 1998.PMID: 9543276Free article.