Columbia subject headings:
Harvard subject headings:
Gynecology--History.
Hygiene--History
Obstetricians--Hungary--Biography.
Obstetrics--History
Semmelweis, Ignác Fülöp, 1818-1865.
Princeton subject headings:
Gynecology--History.
Hygiene--History.
Obstetricians--Hungary--Biography.
Obstetrics--History.
Semmelweis, Ignác Fülöp, 1818-1865.