| Database searched | Date searched | Number of results |
| CENTRAL Issue 6 of 12, 2013 (The Cochrane Library) | 24 July 2013 | 2 |
| MEDLINE (OVID) June 2013 to 19/7/2013 MEDLINE In Process (OVID) – current week |
24 July 2013 24 July 2013 |
5 19 |
| Embase (OVID) June 2013 to 2013 week 29 | 24 July 2013 | 8 |
| PsycINFO (OVID) June 2013 to July week 3 2013 | 24 July 2013 | 1 |
| CINAHL (EBSCO) June 2013 to July 2013 | 24 July 2013 | 4 |
| Total | 39 | |
| After de‐duplication | 35 | |
| After title abstract screening | 0 | |
| After expert checking | 2 | |
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