Holocaust: A massive slaughter, especially the systematic mass extermination of European Jews in Nazi concentration camps prior to and during World War II.Concentration Camps: Facilities in which WARFARE or political prisoners are confined.National Socialism: The doctrines and policies of the Nazis or the National Social German Workers party, which ruled Germany under Adolf Hitler from 1933-1945. These doctrines and policies included racist nationalism, expansionism, and state control of the economy. (from Columbia Encyclopedia, 6th ed. and American Heritage College Dictionary, 3d ed.)World War II: Global conflict involving countries of Europe, Africa, Asia, and North America that occurred between 1939 and 1945.Jews: An ethnic group with historical ties to the land of ISRAEL and the religion of JUDAISM.TetrahydrocortisolPolitical Systems: The units based on political theory and chosen by countries under which their governmental power is organized and administered to their citizens.IsraelSurvivors: Persons who have experienced a prolonged survival after serious disease or who continue to live with a usually life-threatening condition as well as family members, significant others, or individuals surviving traumatic life events.Cholestenone 5 alpha-Reductase: An oxidoreductase that catalyzes the conversion of 3-oxo-delta4 steroids into their corresponding 5alpha form. It plays an important role in the conversion of TESTOSTERONE into DIHYDROTESTOSTERONE and PROGESTERONE into DIHYDROPROGESTERONE.