RT Journal Article SR Electronic T1 The TLNO/TLCO ratio in pulmonary function test interpretation JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 310 OP 310 DO 10.1183/09031936.00023913 VO 43 IS 1 A1 Colin Borland YR 2014 UL http://erj.ersjournals.com/content/43/1/310.abstract AB