CD4 and neoplasm: The immunophenotype of T lymphocytes demonstrated that patients showing tumor relapse after surgery and our combination immunotherapy were characterized by baseline higher levels of Treg cells, EM CD3+ T cells, EM CD8lowCD4hi double positive T cells and CM γδ T cells and lower levels of N CD4+ T cells and TD CD8hiCD4low double positive T cells, with respect to patients with a favorable outcome.