1. Institute of Biochemistry, Eidgenössische Technische Hochschule Zürich (ETHZ); Zürich Switzerland
2. Swiss Institute of Experimental Cancer Research (ISREC), École Polytechnique Fédérale de Lausanne (EPFL); Lausanne Switzerland
3. Genetics Division, Center of Basic Research II, Biomedical Research Foundation of the Academy of Athens (BRFAA); Athens Greece