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.
Results of search strategy.
| IDENTIFICATION |
| 193 articles sourced from 5 databases |
| ↓ |
| TITLE and ABSTRACT REVIEW |
| 57 selected for full review |
| 136 excluded |
| ↓ |
| ARTICLE REVIEW |
| 34 included |
| 23 excluded (20 did not contain needed elements, 3 unobtainable) |
| ↓ |
| OUTCOME |
| 34 articles accepted for review |
