1 Department of Biomechanical Engineering, Delft University of Technology, Delft 2628 CD, The Netherlands. Electronic address: y.li-7@tudelft.nl.
2 Department of Anatomy and Cell Biology, University Hospital RWTH Aachen, Aachen 52074, Germany; Department of Orthopedic Surgery, Maastricht UMC+, Maastricht 6202 AZ, The Netherlands.
3 Department of Anatomy and Cell Biology, University Hospital RWTH Aachen, Aachen 52074, Germany.
4 Department of Biomechanical Engineering, Delft University of Technology, Delft 2628 CD, The Netherlands.
5 3D Systems - LayerWise NV, Grauwmeer 14, Leuven 3001, Belgium; KU Leuven Department of Mechanical Engineering, Kasteelpark Arenberg 44, Leuven 3001, Belgium.
6 Department of Mechanical Engineering, Tsinghua University, Beijing 10004, China.
7 Department of Biomechanical Engineering, Delft University of Technology, Delft 2628 CD, The Netherlands; Department of Orthopedics, UMC Utrecht, Heidelberglaan 100, Utrecht 3584CX, The Netherlands.