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Checked, not settled

Checks out so far.

“The study estimated the PM2.5-productivity relationship using an instrumental-variable design combining air-quality data with bibliographic publication data.”

2 of 4 review checks done · 1 counted · 1 by the author only

Supported · 0.8581 under ledger-default@0.3.0 at snapshot 27745 · review checks 1 of 4 · provisional until audited. The number is model-conditional, not a share of truth.

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