[1] NCI, Div Canc Epidemiol & Genet, Bethesda, MD 20892 USA
[2] Univ Calif Irvine, Div Gastroenterol, Irvine, CA USA
[3] VA Long Beach Healthcare Syst, Gastroenterol Serv, Long Beach, CA USA
[4] Massachusetts Gen Hosp, Med Serv, Gastrointestinal Unit, Boston, MA 02114 USA
[5] Harvard Univ, Sch Med, Dept Med, Boston, MA USA
[6] Univ Michigan, Med Ctr, Div Gastroenterol, Ann Arbor, MI USA
[7] Bon Secours Hlth Syst, Liver Inst Virginia, Newport News, VA USA
[8] CSC, Rockville, MD USA
[9] Celera Corp, Alameda, CA USA
[10] Univ Connecticut, Dept Med, Ctr Hlth, Farmington, CT 06032 USA
[11] Univ Connecticut, Ctr Hlth, Dept Mol & Struct Biol, Farmington, CT USA
[12] Univ Connecticut, Ctr Hlth, Liver Biliary Pancreat Ctr, Farmington, CT USA
[13] Carolinas Med Ctr, Charlotte, NC 28203 USA