1. Laboratory for Skeletal Development and Joint Disorders, Katholieke Universiteit Leuven, Leuven, Belgium.
2. Prometheus, Division of Skeletal Tissue Engineering Leuven, Katholieke Universiteit Leuven, Leuven, Belgium.
3. School of Pharmacy, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
4. Groep T—Leuven Engineering College (Association Katholieke Universiteit Leuven), Biomedical Engineering Research Team, Leuven, Belgium.
5. Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Leuven, Belgium.