Browder 1989 B.
| Methods | As above | |
| Participants | As above | |
| Interventions | As above | |
| Outcomes | As above | |
| Notes | As above | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment? | Unclear risk | D ‐ Not used |
| Methods | As above | |
| Participants | As above | |
| Interventions | As above | |
| Outcomes | As above | |
| Notes | As above | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment? | Unclear risk | D ‐ Not used |