1 The Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland.
2 Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland.
3 Department of Medicine, Baylor College of Medicine, Houston, Texas.
4 Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland; VA Maryland Healthcare System, Baltimore, Maryland; Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland; Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland. Electronic address: [email protected].