1. Department of Psychological and Brain Sciences, Boston University;
2. Institute of Human Genomic Study, Korea University Ansan Hospital;
3. Framingham Heart Study, Boston University School of Medicine;
4. Division of Pulmonary, Critical Care, and Sleep Medicine, Beth Israel Deaconess Medical Center;
5. Department of Neurology, Seoul National University Bundang Hospital;
6. Department of Respiratory Internal Medicine, Korea University Ansan Hospital