Columbia subject headings:
Medicine--United States--History--Congresses.
Social medicine--United States--History--Congresses.
Therapeutics--United States--History--Congresses.
Harvard subject headings:
Medicine--United States--History--Congresses.
Social medicine--United States--History--Congresses.
Therapeutics--United States--History--Congresses.
Princeton subject headings:
Medicine--United States--History--Congresses.
Social medicine--United States--History--Congresses.
Therapeutics--United States--History--Congresses.