[1] Med Clin & Fdn, Liver Res Unit, Puente Piedra 150,Col Toriello Guerra, Mexico City 14050, DF, Mexico
[2] Hosp Juarez Mexico, Dept Gastroenterol, Mexico City 07760, DF, Mexico
[3] Civil Hosp Guadalajara Fray Antonio Alcalde, Dept Mol Biol Med, Guadalajara 44280, Jalisco, Mexico
[4] Christus Muguerza Super Specialty Hosp Monterrey, Dept Internal Med, Monterrey 64060, Nuevo Leon, Mexico
[5] Univ Hosp Jose Eleuterio Gonzalez Monterrey, Dept Gastroenterol, Monterrey 64060, Nuevo Leon, Mexico
[6] Gen Hosp Mexico Dr Eduardo Liceaga, Dept Gastroenterol, Mexico City 06720, DF, Mexico
[7] Cent Mil Hosp, Dept Gastroenterol, Mexico City 11200, DF, Mexico
[8] Juarez Univ State Durango, Fac Med & Nutr, Durango 34100, CO, Mexico
[9] Reg Gen Hosp IMSS 1, Liver Clin, Cuernavaca 62450, Morelos, Mexico