. 2020 Sep 22;61(10):868–874. doi: 10.3349/ymj.2020.61.10.868
© Copyright: Yonsei University College of Medicine 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://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. CONSORT flow diagram of participants.
