medicine, laboratories, State Inspector Professor Brekenfeld during te inspection of the laboratory of the District Hygiene Institute in Potsdam, vaccinating a mouse, , Additional-Rights-Clearences-Not Available

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Keywords: 1950s, 20th, animal, assistant, brekenfeld, century, east, experiments, gdr, germany, historic, historical, inspection, inspector, laboratories, medic, medicine, people, professor, science, state, te