| Date | Event | Description |
|---|---|---|
| 24 May 2021 | New citation required but conclusions have not changed | There have been no changes to the results. |
| 24 May 2021 | New search has been performed | The searches have been updated and completed to April 2021. No new trials were found for inclusion in this updated review. The review has six included trials with 1270 participants. The results are unchanged. |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.