|
Level of evidence |
||||||
| Level of evidence |
# of studies 2004–2007 |
# of studies up to 2003 |
total # studies to June 2007 |
|||
|
|
||||||
| systematic reviews |
1 |
1 |
2 |
|||
| RCT's |
1 |
9 |
10 |
|||
| Observational |
2 |
1 |
3 |
|||
| Descriptive |
36 |
141 |
177 |
|||
| Conference abstracts |
17 |
14 |
31 |
|||
| RCT |
0 |
5 |
5 |
|||
| OBSERV |
1 |
0 |
1 |
|||
| DESC |
16 |
9 |
25 |
|||
Gotlib and Rupert Chiropractic & Osteopathy 2008 16:11 doi:10.1186/1746-1340-16-11 |
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