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Stocks J, Godfrey S, Beardsmore C, Bar-Yishay E, Castile R; ERS/ATS Task Force on Standards for Infant Respiratory Function Testing. European Respiratory Society/American Thoracic Society.Stocks J, et al.Eur Respir J. 2001 Feb;17(2):302-12. doi: 10.1183/09031936.01.17203020.Eur Respir J. 2001.PMID: 11334135Free article.