Lymphoma, Extranodal NK-T-CellNose NeoplasmsLymphoma, T-CellLymphomaKiller Cells, NaturalLymphoma, B-CellLymphoma, Non-HodgkinLymphoma, T-Cell, PeripheralLymphoma, Large B-Cell, DiffuseLymphoma, B-Cell, Marginal ZoneEpstein-Barr Virus InfectionsAsparaginaseAntigens, CD1Herpesvirus 4, HumanGalactosylceramidesLymphoma, FollicularNK Cell Lectin-Like Receptor Subfamily BT-Lymphocyte SubsetsBurkitt LymphomaGenes, T-Cell Receptor alphaPrognosisAntigens, CD1dImmunohistochemistry