*Orthopedic Department, Peking University Third Hospital, Beijing, China; and
†Harvard Medical School, Boston, MA; and Carl J Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Boston, MA.
Address correspondence and reprint requests to Yan Zeng, MD, Orthopedic Department, Peking University Third Hospital, No 49. North Garden St, Haidian District, Beijing, China, 100191; E-mail: [email protected]
Acknowledgment date: January 21, 2014. Revision date: May 23, 2014. Acceptance date: July 8, 2014.
The manuscript submitted does not contain information about medical device(s)/drug(s).
No funds were received in support of this work.
Relevant financial activities outside the submitted work: consultancy, payment for lectures.
