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Canonical Source · systematic review
This page documents how this source is reused across Claim by Claim. A source can support, challenge, qualify or contextualize different claims; appearing here does not imply endorsement of every linked proposition.
Evidence context
Evidence roles describe what this source helps establish inside each Investigation. They are local to that use, not permanent labels attached to the publication itself.
Investigation
A 2022 systematic review of randomized placebo-controlled Reiki trials reported greater-than-placebo effects for some mental-health outcomes but judged the evidence base small and the overall findings inconclusive.
Subject families