[1] Natl Univ Singapore, Fac Dent, 11 Lower Kent Ridge Rd, Singapore 119083, Singapore
[2] Agcy Sci Technol & Res, Inst Med Biol, Singapore, Singapore
[3] Natl Univ Singapore, Natl Univ Hlth Syst, Dept Orthopaed Surg, Cartilage Repair Program,Therapeut Tissue Engn La, Singapore, Singapore
[4] Natl Univ Singapore, Life Sci Inst, Tissue Engn Program, Singapore, Singapore
[5] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Surg, Singapore, Singapore