Columbia subject headings:
Harvard subject headings:
Junta Central de Vacuna (Venezuela)
Junta Central de Vacuna (Venezuela)--History--Sources.
Smallpox--Vaccination--Venezuela--History--19th century--Sources.
Vaccination--Law and legislation--Venezuela.
Vaccination--Venezuela--Finance.
Vaccination--Venezuela--History--19th century--Sources.
Princeton subject headings:
Junta Central de Vacuna (Venezuela)
Junta Central de Vacuna (Venezuela)--History--Sources.
Smallpox--Venezuela--Vaccination--History--19th century--Sources.
Vaccination--Law and legislation--Venezuela.
Vaccination--Venezuela--Finance.
Vaccination--Venezuela--History--19th century--Sources.