title: B cell proliferation in acute infectious lymphocytosis.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology*; D001853:Bone Marrow / Q000276:immunology / Q000473:pathology; D002675:Child, Preschool; D006801:Humans; D008213:Lymphocyte Activation; D008218:Lymphocytosis / Q000209:etiology / Q000276:immunology* / Q000473:pathology; D008297:Male