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| Methods | Crossover study with 2 week blocks, without intervening washout periods | |
| Participants | 24 patients with intractable neurogenic symptoms, 18 with MS | |
| Interventions | THC v. CBD v. 1:1 mixture of THC:CBD v. placebo | |
| Outcomes | daily patient visual analogue scales, Ashworth score, numerical investigator rating of symptoms | |
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Allocation concealment? | High risk | C ‐ Inadequate |
