Mycophenolate mofetil Recruiting Phase 0 Trials for Myelodysplastic Syndromes / Agnogenic Myeloid Metaplasia / Acute Lymphoblastic Leukaemias (ALL) / Relapsed Chronic Lymphocytic Leukemia / Lymphoid Malignancies / refractory Non-Hodgkin's lymphoma / Acute Myelogenous Leukaemia (AML) / Lymphoma, Hodgkins / chronic Chronic myelogenous leukemia / Chronic Lymphocytic Leukemia (CLL) - Refractory / Non-Hodgkin's Lymphoma, Relapsed / Refractory Hodgkin Lymphoma Treatment