1. Research Groups for Gene Modification in Stem Cells LOEWE Center for Cell and Gene Therapy Frankfurt/Main Paul‐Ehrlich‐Institute Langen Germany
2. Institute of Experimental Hematology Hannover Medical School Hannover Germany
3. Department of Experimental Biomedicine‐Vascular Medicine University Hospital and Rudolf Virchow Center University of Würzburg Würzburg Germany
4. Molecular Biotechnology and Gene Therapy Paul‐Ehrlich‐Institute Langen Germany
5. LOEWE Center for Cell and Gene Therapy and Department of Medicine, Hematology/Oncology Goethe University Frankfurt Frankfurt am Main Germany