Columbia subject headings:
DNA polymerases--Congresses.
Immunocompetent cells--Congresses.
Leukemia--Diagnosis--Congresses.
Harvard subject headings:
Princeton subject headings:
Deoxyribonucleate nucleotidyltransferase--Congresses.
Immunocompetent cells--Congresses.
Leukemia--Diagnosis--Congresses.