| Affiliation: | 1. Department of Neurosurgery;2. Department of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongcheng District, Beijing, China;1. Department of Internal Medicine;2. Division of Gastroenterology and Hepatology;3. Digestive Disease Research Center, Medical University of South Carolina, Charleston;1. Division of Cardiovascular Medicine, University of Toledo Medical Center, Toledo, Ohio;2. Division of Medicine, Forrest General Hospital, Hattiesburg, Miss;3. Section of Cardiology, Baylor College of Medicine, Houston, Tex;4. Division of Medicine, West Suburban Medical Center, Oak Park, Ill;1. University of Iowa Carver College of Medicine, Iowa City, IA;2. Department of Internal Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA |
