Columbia subject headings:
Harvard subject headings:
Drug control--History--Congresses.
Pharmaceutical chemistry--History--Congresses.
Pharmaceutical industry--History--Congresses.
Pharmaceutical technology--History--Congresses.
Pharmacy--History--Congresses.
Princeton subject headings:
Drug control--History--Congresses.
Pharmaceutical chemistry--History--Congresses.
Pharmaceutical industry--History--Congresses.
Pharmaceutical technology--History--Congresses.
Pharmacy--History--Congresses.