Columbia subject headings:
Medicine--Mexico--History--19th century.
Science--Mexico--History--19th century.
Science--Social aspects--Mexico--History--19th century.
Social medicine--Mexico--History--19th century.
Harvard subject headings:
Medicine--Mexico--History--19th century.
Science--Mexico--History--19th century.
Science--Social aspects--Mexico--History--19th century.
Social medicine--Mexico--History--19th century.
Princeton subject headings:
Medicine--Mexico--History--19th century.
Science--Mexico--History--19th century.
Science--Social aspects--Mexico--History--19th century.
Social medicine--Mexico--History--19th century.