1. Institute of Clinical Medicine, Faculty of Medicine, National Yang-Ming University; Taiwan Republic of China
2. Institute of Pharmacology, Faculty of Medicine, National Yang-Ming University; Taiwan Republic of China
3. Stem Cell Laboratory, Department of Medical Research, Taipei Veterans General Hospital; Taiwan Republic of China
4. Orthopaedics and Traumatology, Taipei Veterans General Hospital; Taiwan Republic of China
5. Institute of Biomedical Sciences, Academia Sinica; Taiwan Republic of China