[1] Sichuan Univ, West China Hosp, State Key Lab Biotherapy, Lab Stem Cell & Tissue Engn, Chengdu 610000, Sichuan, Peoples R China
[2] Univ Hosp Zurich, Inst Pathol & Mol Pathol, CH-8091 Zurich, Switzerland
[3] Guizhou Prov Peoples Hosp, Dept Orthoped, Guiyang 550000, Guizhou, Peoples R China
[4] Peking Univ, Shenzhen Hosp, Orthopaed Res Ctr, Shenzhen Engn Lab Orthopaed Regenerat Technol, Shenzhen 518036, Peoples R China
[5] Peking Univ, Shenzhen Hosp, Dept Spine Surg, Shenzhen Key Lab Spine Surg, Shenzhen 518036, Peoples R China
[6] Univ Hong Kong, Dept Orthopaed & Traumatol, Hong Kong 999077, Peoples R China
[7] Fdn Poliambulanza Ist Osped, Ctr Ric E Menni, I-25124 Brescia, Italy
[8] Univ Cattolica Sacro Cuore, Fac Med & Chirurg, Ist Anat Umana & Biol Cellulare, I-00168 Rome, Italy
[9] Univ Sydney, Childrens Med Res Inst, Sydney, NSW 2145, Australia