Columbia subject headings:
Drug addiction--Treatment--Great Britain--History--20th century.
Substance abuse--Government policy--Great Britain--History--20th century.
Substance abuse--Treatment--Great Britain--History--20th century.
Harvard subject headings:
Substance abuse--Government policy--England--History--20th century.
Substance abuse--Treatment--England--History--20th century.
Princeton subject headings:
Substance abuse--Government policy--England--History--20th century.
Substance abuse--Treatment--England--History--20th century.