| Database | Date searched | # of results |
|---|---|---|
| Medline | Jan 5, 2016 | 1716 |
| CINAHL | Jan 5, 2016 | 1329 |
| EMBASE | Jan 5, 2016 | 1505 |
| SportDiscus | Jan 5, 2016 | 1497 |
| Scopus | Jan 5, 2016 | 2172 |
| Total | 8219 |
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