Multisite validation of a simple electronic health record algorithm for identifying diagnosed obstructive sleep apnea

Brendan T. Keenan, H. Lester Kirchner, Olivia J. Veatch, Kenneth M. Borthwick, Vicki A. Davenport, John C. Feemster, Maged Gendy, Thomas R. Gossard, Frances M. Pack, Laura Sirikulvadhana, Luke N. Teigen, Paul C. Timm, Beth A. Malow, Timothy I. Morgenthaler, Phyllis C. Zee, Allan I. Pack, Janet D. Robishaw, Stephen F. Derose