1. Department of Epidemiology and Biostatistics; School of Medicine, Case Western Reserve University; Cleveland Ohio United States of America
2. Division of Sleep and Circadian Disorders; Brigham and Women's Hospital; Boston Massachusetts United States of America
3. Division of Sleep Medicine; Harvard Medical School; Boston Massachusetts United States of America
4. Department of Biostatistics; Harvard T.H. Chan School of Public Health; Boston Massachusetts United States of America
5. Department of Medicine; Division of Allergy; Pulmonary and Critical Care; Vanderbilt University Medical Center; Nashville Tennessee United States of America
6. Center for Human Genetic Research and Department of Anesthesia; Pain, and Critical Care Medicine; Massachusetts General Hospital; Boston Massachusetts United States of America
7. Program in Medical and Population Genetics; Broad Institute; Cambridge Massachusetts United States of America
8. Division of Pulmonary; Critical Care; and Sleep Medicine; Beth Israel Deaconess Medical Center; Boston Massachusetts United States of America