Columbia subject headings:
Harvard subject headings:
Physicians--Massachusetts--Biography.
Smallpox--Vaccination
Smallpox--Vaccination--United States--History--19th century.
Waterhouse, Benjamin, 1754-1846
Princeton subject headings:
Physicians--Massachusetts--Biography.
Smallpox--United States--Vaccination--History--19th century.
Smallpox--Vaccination.
Waterhouse, Benjamin, 1754-1846.