. 2021 Sep 6;33(3):154–161. doi: 10.5371/hp.2021.33.3.154
Copyright © 2021 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. Study flow chart.
