RT Journal Article SR Electronic T1 It is time to consider standardizing the interrupter technique JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1428 OP 1429 VO 10 IS 6 A1 Carter, ER YR 1997 UL http://erj.ersjournals.com/content/10/6/1428.abstract AB