Columbia subject headings:
Cancer--Immunological aspects--Congresses.
Coronary heart disease--Congresses.
Genetic engineering--Congresses.
Medicine--Congresses.
Radioimmunoassay--Congresses.
Harvard subject headings:
Cancer--Immunological aspects--Congresses
Coronary heart disease--Congresses.
Genetic engineering--Congresses.
Medicine--Congresses
Radioimmunoassay--Congresses.
Princeton subject headings: