Chan, S H Epstein Barr virus (EBV) antibodies in the diagnosis of NPC--comparison between IFA and two commercial ELISA kits. [electronic resource] - Singapore medical journal Jun 1998 - 263-5 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0037-5675 Subjects--Topical Terms: Antibodies, Viral--analysisBiomarkers, Tumor--analysisCarcinoma--diagnosisEnzyme-Linked Immunosorbent Assay--standardsFluorescent Antibody Technique--standardsHerpesvirus 4, Human--immunologyHumansImmunoglobulin A--analysisNasopharyngeal Neoplasms--diagnosisRetrospective StudiesSensitivity and Specificity