RT Journal Article SR Electronic T1 Is the Berlin Questionnaire an Effective Screening Tool for Obstructive Sleep Apnea in the Preoperative Total Joint Replacement Population? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP eS22 OP eS22 VO 76 IS 2 esuppl 1 A1 Peter Kallas A1 Mark Schumacher A1 Mona Lazar A1 Anjali Desai YR 2009 UL http://www.ccjm.org/content/76/2_esuppl_1/eS22.abstract AB