Domingo Liotta and Surgery in 1953. In 1955, he developed a technique for early diagnosis of tumors in the pancreas and ampulla of Vater (Pour le diagnostic des tumeurs du pancreas: La duodenographie hypotonique. Lyon Chirurgical, 1955). Liotta continued his medical career at the University of Lyon (France) at the "Pierre Mallet-Guy's" General Surgery Service. Then, he trained in thoracic and cardiac surgery, with Professors Paul Santy and Pierre Marion in Lyon France. His early works in the artificial heart are from 1958 in Córdoba, Argentina, where he developed an early prototype successfully used in small animals. After publishing the results of
History of the Jews in Argentina military, many became farmers, peddlers, artisans and shopkeepers. Argentina kept its doors open to Jewish immigration until 1938, when Adolf Hitler and the Nazis in Germany began to take more actions against Jews, and tensions rose across Europe in preparation for war. The government imposed new regulations on immigration; it was severely curtailed at a time of increasing persecution of Jews and the outbreak of World War II, when Jews sought a safe haven from the Nazis. Six million Jews died in Europe during the Holocaust. Juan Domingo Perón's rise to power in 1946 in Argentina after the war worried