RT Journal Article SR Electronic T1 Bicarbonate Level for Early Diagnosis of Obesity Hypoventilation Syndrome: Still Defining Boundaries—Reply JF Respiratory Care FD American Association for Respiratory Care SP e166 OP e167 DO 10.4187/respcare.04443 VO 60 IS 9 A1 Zuleyha Bingol A1 Esen Kıyan YR 2015 UL http://rc.rcjournal.com/content/60/9/e166.2.abstract AB