. 2022 May 30;10(6):1011. doi: 10.3390/healthcare10061011
© 2022 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Figure 2.
Flow diagram of the study selection.