Columbia subject headings:
Biometricians--Supply and demand--United States--Congresses.
Biometry--Study and teaching--United States--Congresses.
Epidemiologists--Supply and demand--United States--Congresses.
Epidemiology--Research--United States--Congresses.
Epidemiology--Study and teaching--United States--Congresses.
Harvard subject headings:
Biometricians--Supply and demand--United States--Congresses.
Biometry--Study and teaching--United States--Congresses.
Epidemiologists--Supply and demand--United States--Congresses.
Epidemiology--Research--United States--Congresses.
Epidemiology--Study and teaching--United States--Congresses.
Princeton subject headings: