1. Department of Medicine, University of Toledo Medical Center, Toledo, OH 43614, USA
2. Department of Gastroenetrology, University of Toledo Medical Center, Toledo, OH 43614, USA
3. Department of Medicine, Chandka Medical College, Larkana, Pakistan
4. Department of Gastroenetrology, Baylor College of Medicine, Houston, TX 77030, USA
5. Division of Surgery, Ziauddin Medical College, Karachi, Pakistan
6. Department of Internal Medicine, Mercy Hospital St. Louis, MO 63141, USA
7. Department of Medicine, Aga Khan University, USA
8. Department of Toledo Libraries, University of Toledo, Toledo, OH 43614, USA
9. Department of Gastroenterology, Guthrie Robert Packer Hospital,Sayre, PA 18840, USA
10. Department of Cardiology, Sands Constellation Heart Institute, Rochester Regional Health, Rochester, NY 14621, USA
11. Department of Gastroenterology, Mayo Clinic, Rochester, MN 55902, USA
12. Department of Cardiology, Westchester Medical Center, Valhalla, NY 10595, USA