| Database | Date Range | Date search | 'Hits'. | No. of 'hits' in 2006 |
|---|---|---|---|---|
| Medline (ovid) | Oct 2005-date | 4/4/11 | 1144 | 843 |
| PsycInfo (Ebsco) | Oct 2005-date | 23/5/11 | 145 | 276 1887-2005 |
| Embase (Ovid) | Sept 05-date | 4/4/11 | 196 | 472 (1980-05) |
| Sci. Citation index (WOK) | 2006-date Sept-Dec 2005 |
5/4/11 5/4/11 |
378 14 |
294 (1970-05) |
| Soc. Sci. Cit index (WOK) | Sept-Dec05 2006-date |
5/4/11 5/4/11 |
26 466 |
437 (1970-05) |
| Assia (CSA) | Sept 2005-date | 5/4/11 | 45 | 57 (1965-05) |
| Cochrane Library (Wiley) | Sept 2005-date | 23/5/11 | 0 syst. reviews 1 'dare' 15 'central' |
1 syst. reviews 4 'central' |