1. Department of Medicine, University of Texas Health Science Center at San Antonio
2. School of Medicine, University of Texas Health Science Center at San Antonio
3. Department of Medicine, Division of Gastroenterology, University of Texas Health Science Center at San Antonio
4. Department of Epidemiology and Public Health, Non-Communicable Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
5. Neurocritical Care Unit, Sanatorio Pasteur, Catamarca, Argentina
6. Department of Gastroenterology and Hepatology, University of Zürich, Zürich, Switzerland
7. Digestive Function: Basel, Laboratory and Clinic for Motility Disorders and Functional Digestive Diseases, Klinik Arlesheim, Arlesheim, Switzerland
8. Department of Neurosurgery, Division of Neurocritical Care, University of Texas Health Science Center at San Antonio