Question: Did Erika Von Mutius and Yusuf Berkan Demirbag share the same nationality?
Sentence (from "Erika von Mutius"): Erika von Mutius( born 14 May 1957 in Bonn, Germany) is a German pediatrician and allergologist at the Helmholtz Center Munich and the Ludwig- Maximilians- University of Munich.
Relevant evidence: Yes