1 Department of Medicine, GI Division, Cancer Center, Howard University Hospital, NW, 2041 Georgia Avenue, DC, Washington, USA. hashktorab@howard.edu.
2 Department of Medicine, GI Division, Cancer Center, Howard University Hospital, NW, 2041 Georgia Avenue, DC, Washington, USA.
3 Department of Pathology and Cancer Center, Department of Biochemistry and Molecular Biology, Howard University College of Medicine, Washington, DC, USA.
4 College of Engineering and Technology, American University of the Middle East, Salmiya, Kuwait.
5 Division of General Internal Medicine and Geriatrics, Indiana University School of Medicine, Indianapolis, IN, USA.
6 Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA.
7 Department of Trauma, Acute and Critical Care Surgery, Duke University Medical Center, Durham, NC, USA.
8 Department of Surgery, Columbia University College of Physicians and Surgeons at Harlem Hospital, New York, NY, USA.
9 Department of Medicine, Interfaith Medical Center, New York, NY, USA.
10 Departments of Emergency Medicine and Internal Medicine, Henry Ford Hospital, Detroit, MI, USA.
11 Division of Gastroenterology and Hepatology, Department of Internal Medicine, Department of Human Genetics and Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA.
12 Department of Biology, School of Computer, Mathematical, and Natural Sciences, Morgan State University, Baltimore, MD, USA.