. 2021 Apr 6;18(7):3797. doi: 10.3390/ijerph18073797
© 2021 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 5.
The average OSS at each follow-up timepoint.