1. Division of Medical Informatics, Department of Internal Medicine, University of Kansas Medical Center , Kansas City, KS , USA
2. Social and Behavioral Sciences, Psychology, University of Kansas , Lawrence, KS , USA
3. YRT Ltd , Winnipeg, MB , Canada
4. Sleep Disorders Centre, University of Manitoba , Winnipeg, MB , Canada
5. Division of Pulmonary Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center , Kansas City, KS , USA