title: Letter: Effect of surgery on lymphocytotoxicity against tumour cells.
mesh_terms: D002675:Child, Preschool; D003601:Cytotoxicity Tests, Immunologic; D006801:Humans; D007223:Infant; D008214:Lymphocytes / Q000276:immunology*; D009447:Neuroblastoma / Q000276:immunology* / Q000473:pathology / Q000601:surgery; D013514:Surgical Procedures, Operative; D009396:Wilms Tumor / Q000276:immunology* / Q000473:pathology / Q000601:surgery