Hodgkin DiseaseReed-Sternberg CellsAntigens, CD30MechlorethamineProcarbazineBleomycinVinblastineDacarbazineAntigens, CD20Epstein-Barr Virus InfectionsLymphomaVincristinePrednisoneNeoplasms, Second PrimaryLymph NodesLymphoma, Large B-Cell, DiffuseLymphoma, Non-HodgkinDoxorubicinAntineoplastic Combined Chemotherapy ProtocolsRetrospective StudiesLymphocytesCombined Modality TherapyTreatment OutcomeB-LymphocytesPrognosisFollow-Up StudiesImmunohistochemistrySurvival RateSurvival AnalysisTime FactorsDelayed DiagnosisPrenatal DiagnosisEarly DiagnosisTumor Cells, CulturedSensitivity and SpecificityDiagnosisHerpesvirus 4, Human