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| Methods | Allocation: Randomised controlled trial | |
| Participants | Diagnosis: DSM IV criteria; CAMDEX diagnosis | |
| Interventions | Unilateral versus bilateral ECT | |
| Outcomes | Mood change: MADRS Cognition: MMSE neuropsychological battery | |
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment (selection bias) | Unclear risk | B ‐ Unclear |
