1. Science for Life Laboratory; Division of Polymer Chemistry; Department of Chemistry-Ångström; Uppsala University; Uppsala 75121 Sweden
2. Experimental Trauma Surgery; University Medical Center Schleswig Holstein UKSH; Kiel 24105 Germany
3. Department of Big Surgery; Peking Union Medical College Hospital; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100730 China
4. Institute of Applied Bioresources Research; College of Animal Science; Zhejiang University; Hangzhou 310058 China
5. Department of Orthopedics; Peking Union Medical College Hospital; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100730 China