What is the nationality of the physician who conducted experiments on Jona Laks ?
Jona Laks: Jona Laks (born 1930) is a Polish Jewish Holocaust survivor who was subject to human experimentation by Josef Mengele at the Auschwitz concentration camp. Josef Mengele: Josef Mengele (] ; 16 March 19117 February 1979) was a German "Schutzstaffel" (SS) officer and physician in Auschwitz concentration camp during World War II.
German