PT - JOURNAL ARTICLE AU - Peter Kallas AU - Mark Schumacher AU - Mona Lazar AU - Anjali Desai TI - Is the Berlin Questionnaire an Effective Screening Tool for Obstructive Sleep Apnea in the Preoperative Total Joint Replacement Population? DP - 2009 Feb 01 TA - Cleveland Clinic Journal of Medicine PG - eS22--eS22 VI - 76 IP - 2 esuppl 1 4099 - http://www.ccjm.org/content/76/2_esuppl_1/eS22.short 4100 - http://www.ccjm.org/content/76/2_esuppl_1/eS22.full SO - Cleve Clin J Med2009 Feb 01; 76