National Jewish Health, Denver, Colorado, United States
University of Florida - Shands Sleep Disorders Center, Gainesville, Florida, United States
Sleep Health, Portage, Michigan, United States
University Hospital Aintree, Liverpool, United Kingdom
Philips Respironics, Boston, Massachusetts, United States
Indiana Regional Medical Center Sleep Disorders Center, Indiana, Pennsylvania, United States
Sleep Center of Greater Pittsburgh, Monroeville, Pennsylvania, United States
Shands and UF Sleep Disorder Center, Gainesville, Florida, United States
University of Manitoba, Winnipeg, Manitoba, Canada
University of Manitoba, Winnipeg, Manitoba, Canada
University of Arizona, Tucson, Arizona, United States
Arkansas Center for Sleep Medicine, Little Rock, Arkansas, United States
Mark G. Goetting, Portage, Michigan, United States
Gaylord Hospital, New Haven, Connecticut, United States
Sleep Disorders Center of Alabama, Birmingham, Alabama, United States
Charite Universitatsmedizin Berlin, Berlin, Germany
Clinilabs, New York, New York, United States
Sleep Disorders Center of Georgia, Atlanta, Georgia, United States
University of Rochester, Rochester, New York, United States