Author contributions
Thomas
ROTH
All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Markus Joerger, Thomas Hundsberger, Anastasios Stathis, Roger von Moos, Simon Haefliger, Andreas Hottinger, and Patrick Roth. The first draft of the manuscript was written by Thomas Kaindl, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.