Clinical Value of a Single Determination of Intracellular ATP Levels in Stimulated CD4+ T Lymphocytes in Pediatric Patients With Stable Liver Transplantation - Serrano, M; Meneu, J C; Alfaro, F J; Martinez-Flores, J A; Mora, S; Morales, J M; Paz Artal, E; Serrano, A (TRANSPLANTATION PROCEEDINGS, 2012)