From the aDepartment of Orthopaedic Surgery
bDepartment of Neurology, Seoul Paik Hospital, Inje University College of Medicine, Seoul
cDepartment of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, Gyeonggi-do, South Korea.
Received May 29, 2020, and accepted for publication, after revision August 28, 2020.
J.-K.L. and B.-N.Y. equally contributed to this work and should be considered as co-first authors.
J.W.J. and H.-S.R. are coauthors.
Conflicts of interest and sources of funding: This work was supported by a grant from Inje University, 2019. The authors declare no conflict of interest.
J.K.L. and B.N.Y. wrote the protocol. J.W.J. and H.S.R. participated in the data entry, checking, recoding, and analysis. J.K.L. participated in the statistical guidance. B.N.Y. participated in the interpretation of statistical findings. J.K.L. wrote first draft of the article. B.N.Y. and S.H.H. commented on and revised the manuscript draft for critical content and approved the final version.
Reprints: Soo-Hong Han, MD, PhD, Department of Orthopaedic Surgery, CHA Bundang Medical Center, School of Medicine, CHA University, 351 Yatap-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea. E-mail: [email protected].
