RT Journal Article SR Electronic T1 Tracheal Bronchus JF Respiratory Care FD American Association for Respiratory Care SP 1056 OP 1058 VO 49 IS 9 A1 Naim Y Aoun A1 Eduardo Velez A1 Lawrence A Kenney A1 Edwin E Trayner YR 2004 UL http://rc.rcjournal.com/content/49/9/1056.abstract AB