title: [A study on hematological and immunological disorders in 2 cases with chronic active Epstein-Barr virus infection in childhood].
mesh_terms: D002051:Burkitt Lymphoma / Q000276:immunology*; D002675:Child, Preschool; D003602:Cytotoxicity, Immunologic; D006801:Humans; D007223:Infant; D007694:Killer Cells, Natural / Q000276:immunology; D008297:Male; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*