RT Journal Article SR Electronic T1 Posture Perfect: The Role of Positioning During Bronchodilator Administration With Oxygen or Heliox JF Respiratory Care FD American Association for Respiratory Care SP 1056 OP 1057 DO 10.4187/respcare.01410 VO 56 IS 7 A1 Fink, James B A1 Ari, Arzu YR 2011 UL http://rc.rcjournal.com/content/56/7/1056.abstract AB