Columbia subject headings:
Harvard subject headings:
Aktion T4 (Germany)
Euthanasia--Germany--Bernburg--History--20th century.
Euthanasia--Germany--Schwerin (Mecklenburg-Vorpommern)--History--20th century.
National socialism and medicine.
Princeton subject headings:
Euthanasia--Germany.
Heilanstalt Sachsenberg (Schwerin, Germany)
Landes-Heil- und Pflegeanstalt Bernburg.
National socialism and medicine--Germany.
Psychiatric hospitals--Germany.