. 2021 Mar 12:1–4. doi: 10.1017/ice.2021.81
© The Society for Healthcare Epidemiology of America 2021
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fig. 1.
Participant flow diagram.