RT Journal Article SR Electronic T1 Obstructive Sleep Apnea and Prolonged Mechanical Ventilation JF Respiratory Care FD American Association for Respiratory Care SP 326 OP 327 DO 10.4187/respcare.01723 VO 57 IS 2 A1 Douglas C Johnson A1 Karin Gardner Johnson YR 2012 UL http://rc.rcjournal.com/content/57/2/326.abstract AB