[1] Pontificia Univ Catolica Chile, Dept Gastroenterol, Escuela Med, Santiago, Chile
[2] Hosp Privado Rosario, Serv Hepatol, Unidad Trasplante Hepat, Rosario, Santa Fe, Argentina
[3] Hosp Clin Porto Alegre, Hepatol Div, Porto Alegre, RS, Brazil
[4] Univ Fed Rio Grande do Sul, Sch Med, Porto Alegre, RS, Brazil
[5] Univ Fed Rio Grande do Sul, Grad Program Gastroenterol & Hepatol, Porto Alegre, RS, Brazil
[6] Natl Inst Gastroenterol, Dept Res & Teaching, Havana, Cuba
[7] Natl Inst Med Sci & Nutr Salvador Zubiran, Gastroenterol Dept, Mexico City, DF, Mexico
[8] Med Sur Clin & Fdn, Liver Res Unit, Mexico City, DF, Mexico
[9] Univ Republica, Hosp Clin, Fac Med, Montevideo, Uruguay
[10] Univ Fed Bahia, Sch Med, Salvador, BA, Brazil
[11] Univ Florida, Div Endocrinol Diabet & Metab, Gainesville, FL USA
[12] Univ Sao Paulo, Dept Gastroenterol, Clin Div, Hepatol Branch,Sch Med, Sao Paulo, Brazil
[13] Hosp Edgardo Rebagliati Martins, Dept Aparato Digest, EsSalud, Lima, Peru
[14] Hosp Nacl Prof Alejandro Posadas, Serv Gastroenterol, Secc Higado Vias Biliares & Pancreas, Buenos Aires, DF, Argentina
[15] Hosp Fuerzas Armadas, Liver Unit, Montevideo, Uruguay
[16] Hosp Clinicas, Asuncion, Paraguay
[17] Hosp Italiano Buenos Aires, Liver Unit, Buenos Aires, DF, Argentina
[18] Hosp Italiano Buenos Aires, Buenos Aires, DF, Argentina
[19] Univ Fed Rio de Janeiro, Internal Med Dept, Sch Med, Rio De Janeiro, Brazil
[20] Univ Fed Rio de Janeiro, Clementino Fraga Filho Univ Hosp, Rio De Janeiro, Brazil
[21] Hosp Nacl Arzobispo Loayza, Serv Gastroenterol, Unidad Higado, Lima, Peru
[22] Univ Peruana Cayetano Heredia, Lima, Peru
[23] Hosp Guillermo Almenara, Lima, Peru
[24] Civil Hosp Guadalajara, Dept Mol Biol Med, Guadalajara, Jalisco, Mexico
[25] Univ Fed Sao Paulo, Dept Gastroenterol, Sao Paulo, Brazil
[26] Hosp Gen Plaza Salud, Santo Domingo, Dominican Rep
[27] Hosp Clin Univ Chile, Secc Gastroenterol, Santiago, Chile
[28] Univ Antioquia, Hepatobiliary & Liver Transplant Program, Hosp Pablo Tobon Uribe, Medellin, Colombia
[29] Univ Antioquia UdeA, Fac Med, Grp Gastrohepatol, Medellin, Colombia
[30] Hosp Univ Austral, Hepatol & Liver Transplant Unit, Pilar, Argentina
[31] Univ Peruana Cayetano Heredia, Fac Med Alberto Hurtado, Lima, Peru
[32] Hosp Univ Fdn Santa Fe Bogota, Bogota, Colombia
[33] Indiana Univ Sch Med, Div Gastroenterol & Hepatol, Indianapolis, IN 46202 USA
[34] Univ Favaloro, Fac Ciencias Med, Buenos Aires, DF, Argentina