1 Hepatology and Liver Transplant UnitDepartment of GastroenterologyNational Institute of Medical Sciences and Nutrition Salvador ZubiránCiudad de MéxicoMexico.
2 Department of BiostatisticsUniversity of WashingtonSeattleWA.
3 Transplant DepartmentNational Institute of Medical Sciences and Nutrition Salvador ZubiránCiudad de MéxicoMexico.