RT Journal Article SR Electronic T1 Adopting universal lung function reference equations JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 901 OP 903 DO 10.1183/09031936.00123613 VO 42 IS 4 A1 Maureen P. Swanney A1 Martin R. Miller YR 2013 UL http://erj.ersjournals.com/content/42/4/901.abstract AB