. 2020 Dec 3;32(4):170–181. doi: 10.5371/hp.2020.32.4.170
Copyright © 2020 by Korean Hip Society
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fig. 1. The flow chart of the study selection process.
