1. Rush Medical College, Rush University Medical Center, Chicago, Illinois
2. Section of Sleep Surgery, Department of Otolaryngology – Head and Neck Surgery, Rush University Medical Center, Chicago, Illinois
3. Rush Informatics and Biostatistics Core, Rush University Medical Center, Chicago, Illinois
4. Section of Sleep Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois