Hitler personally gave financial support to the Wissenschaftliches Institut zur Erforschung der Tabakgefahren ( Scientific Institute for the Study of Tobacco Hazards ) at the University of Jena , headed by Karl Astel . Hitler personally gave financial support to the Wissenschaftliches Institut zur Erforschung der Tabakgefahren ( Institute for Tobacco Hazards Research ) at the University of Jena , headed by Karl Astel .