title: Terminal deoxynucleotidyl transferase activity in thymus biopsies of immunodeficient patients.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002852:Chromatography, Ion Exchange; D004253:DNA Nucleotidylexotransferase / Q000378:metabolism*; D004254:DNA Nucleotidyltransferases / Q000378:metabolism*; D005260:Female; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000201:enzymology*; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D013950:Thymus Gland / Q000201:enzymology*
chemical_list: D004254:DNA Nucleotidyltransferases; D004253:DNA Nucleotidylexotransferase