[1] Chinese Univ Hong Kong, Dept Med & Therapeut, State Key Lab Digest Dis, Hong Kong, Peoples R China
[2] Baylor Coll Med, VA HSR&D Ctr Innovat Qual Effect & Safety, Michael E DeBakey Vet Affairs Med Ctr, Dept Med,Sect Gastroenterol,Med, Houston, TX 77030 USA
[3] Baylor Coll Med, VA HSR&D Ctr Innovat Qual Effect & Safety, Michael E DeBakey Vet Affairs Med Ctr, Dept Med,Sect Hepatol Hlth Serv Res,Med, Houston, TX 77030 USA
[4] Baylor Coll Med, VA HSR&D Ctr Innovat Qual Effect & Safety, Michael E DeBakey Vet Affairs Med Ctr, Dept Med,Sect Gastroenterol,Gastroenterol & Hepat, Houston, TX 77030 USA
[5] Baylor Coll Med, VA HSR&D Ctr Innovat Qual Effect & Safety, Michael E DeBakey Vet Affairs Med Ctr, Dept Med,Sect Hepatol Hlth Serv Res,Gastroenterol, Houston, TX 77030 USA