Open Access Open Badges Letter to the Editor

GOLD or lower limit of normal definition? a letter and authors’ response

Philip Quanjer1*, Carlos A Vaz Fragoso2, Martin R Miller3, Gülmisal Güder4, Stefan Störk5, Arno W Hoes4 and Frans Rutten4

Author Affiliations

1 Department of Pulmonary Diseases and Department of Paediatrics, Erasmus Medical Centre, Erasmus University, Rotterdam, the Netherlands

2 Department of Internal Medicine, New Haven, CT, USA, and Veterans Affairs (VA) Clinical Epidemiology Research Center, Yale University School of Medicine, West Haven, CT, USA

3 Institute of Occupational and Environmental Medicine, University of Birmingham, Birmingham, UK

4 Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands

5 Comprehensive Heart Failure Center, Department of Internal Medicine I, University Würzburg, Würzburg, Germany

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Respiratory Research 2012, 13:61  doi:10.1186/1465-9921-13-61

Published: 26 July 2012

First paragraph (this article has no abstract)

Philip H Quanjer, Carlos A Vaz Fragoso and Martin R Miller.