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Canonical Source · peer reviewed study
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 double-blind repeated-measures trial in 16 healthy volunteers reported a modest reduction in cardiac index during stimulation of the left-foot area assigned to the heart.
Very small sample and tiny reported effect; an acute surrogate change is not evidence that heart disease is treated.
Subject families