The determination of numbers of T and B lymphocytes in the blood of children and adults by the direct immunofluorescence technique.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001402:B-Lymphocytes / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D000939:Epitopes; D005455:Fluorescent Antibody Technique; D006801:Humans; D007074:Immunoglobulin G; D007223:Infant; D007231:Infant, Newborn; D007958:Leukocyte Count; D012397:Rosette Formation; D013601:T-Lymphocytes / Q000276:immunology*
D000939:Epitopes; D007074:Immunoglobulin G