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| Methods | Allocation: randomised. Blindness: double‐blind. Duration: Six weeks. Setting: inpatients. Design: parallel groups. |
| Participants | Diagnosis: schizophrenia. N = 30. Sex: 14 female, 16 male. Age: average 53 years. History: chronic illness. |
| Interventions | 1. Vitamin E (2000 IU/day). N = unclear, awaiting more information.
2. Placebo. N = unclear, awaiting more information. Stable antipsychotic: haloperidol. |
| Outcomes | Leaving the study early. |
| Notes |
