Columbia subject headings:
Medical care--Wales--History--19th century.
Medical care--Wales--History--20th century.
Medical policy--Wales--History--19th century.
Medical policy--Wales--History--20th century.
Harvard subject headings:
Medical care--Wales--History--19th century.
Medical care--Wales--History--20th century.
Medical policy--Wales--History--19th century.
Medical policy--Wales--History--20th century.
Princeton subject headings: