1. Institute of Materials Chemistry and Corrosion & Department of Materials, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
2. Laboratory of Metallurgical Chemistry, Institution of Materials, Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland
3. Musculoskeletal Research Unit, Department of Veterinary Surgery, University of Zurich, Zurich, Switzerland
4. Department of Materials Science, University of Erlangen-Nuremberg, Erlangen, Germany