Derivation Web

source_7a6aefc123c34d45

# Source literature boundary memo

## Research question

Across retrieved source-level receipts for caloric_restriction, which endpoints show directionally favorable versus null/non-convergent signals, and what matched PICO remains untested?

## Selection criteria

The source-literature fallback selected caloric_restriction because the domain snapshot exposed enough source-backed, topic-overlappin…