. 2019 Sep 9;20:80–85. doi: 10.1016/j.jot.2019.08.005
© 2019 Published by Elsevier (Singapore) Pte Ltd on behalf of Chinese Speaking Orthopaedic Society.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).