title: Letter: Lymphocyte response after radiotherapy.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology / Q000528:radiation effects*; D002648:Child; D002675:Child, Preschool; D005455:Fluorescent Antibody Technique; D006801:Humans; D007104:Immune Adherence Reaction; D007958:Leukocyte Count; D011830:Radiation Effects; D011878:Radiotherapy; D013601:T-Lymphocytes / Q000276:immunology / Q000528:radiation effects*; D013950:Thymus Gland / Q000528:radiation effects