Columbia subject headings:
Harvard subject headings:
Clinical trials--Economic aspects--Germany (East)--History.
Clinical trials--Research--Germany (East)
Drugs--Testing--Economic aspects--Germany (East)--History.
Pharmaceutical industry--Germany (East)--History.
Princeton subject headings:
Clinical trials--Economic aspects--Germany (East)--History.
Clinical trials--Research--Germany (East).
Drugs--Testing--Economic aspects--Germany (East)--History.
Pharmaceutical industry--Germany (East)--History.