RT Journal Article SR Electronic T1 RV/TLC% ratio: alternative criteria of normality JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1812 OP 1813 DO 10.1183/09031936.95.08101812 VO 8 IS 10 A1 A Diez Herranz YR 1995 UL http://erj.ersjournals.com/content/8/10/1812.abstract AB