Evidence / Sources

What the sources say

Explore studies, data and field reports by the question you need to answer. We show who published the source and what we reviewed; a located citation still needs interpretation.

01 / Evidence types

Three complementary libraries

02 / Editorial synthesis

Report, map and open questions

These syntheses link sources and make coverage limits explicit.

Critical reading

A record is not an independent validation.

Commercial statements remain attributed to their vendors. Metadata-only paper records are not presented as full-text analyses.

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