Derivation Web

source_e563c85e8df44a78

# Source literature boundary memo

## Research question

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

## Selection criteria

The source-literature fallback selected related_macular because the domain snapshot exposed enough fact-backed, topic-overlapping papers. Th…