RT Journal Article SR Electronic T1 Dual gas techniques for peripheral airway function: diffusing the issues JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1491 OP 1494 DO 10.1183/09031936.00207514 VO 45 IS 5 A1 Sylvia Verbanck A1 Manuel Paiva YR 2015 UL http://erj.ersjournals.com/content/45/5/1491.abstract AB