<qa>  What is the reason for considering low risk liver recipients?Only liver recipients expected to have a relatively low risk of developing rejection andor liver failure are eligible for this trial. Some reasons for considering them low risk are their stable liver function, having had the transplant for over a year, having had one or fewer prior rejection episodes, having had non-autoimmune liver disease, their currently requiring low doselevel cyclosporine or tacrolimus, and the plan to use high dose mycophenolate mofetil and to exclude patients that fail to attain target values for mycophenolic acid area under the concentration-time curve MPA AUC - MycoPhenolic Acid Area Under the Curve. 