RT Journal Article SR Electronic T1 Should we routinely screen for hypercapnia in sleep apnea patients before elective noncardiac surgery? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 60 OP 61 DO 10.3949/ccjm.77a.09105 VO 77 IS 1 A1 Babak Mokhlesi A1 Leif Saager A1 Roop Kaw YR 2010 UL http://www.ccjm.org/content/77/1/60.abstract AB