| Date | Event | Description |
|---|---|---|
| 31 May 2014 | New citation required but conclusions have not changed | The addition of the trial to this updated review did not change the conclusions. |
| 31 May 2014 | New search has been performed | Search updated and one additional trial included in the review (Valverde 2011). Methods and literature review updated. |
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.