| Date | Event | Description |
|---|---|---|
| 4 September 2020 | Review declared as stable | This review is no longer being updated. It was superseded by a new review (with the same title) in the CDSR in 2020, see: www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD012955.pub2/full. See also Published notes. |
| 4 September 2020 | Amended | Abstract, Plain language summary and Notes amended to explain that this review was superseded by a review published in the Cochrane Database of Systematic Reviews (CDSR) in 2020. |
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.