RT Journal Article SR Electronic T1 Recommendations for epidemiological studies on COPD JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1277 OP 1278 DO 10.1183/09031936.00224411 VO 39 IS 5 A1 Philip H. Quanjer A1 Sanja Stanojevic A1 Maureen P. Swanney A1 Martin R. Miller YR 2012 UL http://erj.ersjournals.com/content/39/5/1277.abstract AB