Data extraction

• 1:34The extraction gridA studies-by-endpoints matrix shows what data exists, is partial, or is missing across the review.
• 1:36Field-level evidenceNumbered pins beside every value open the sentence it was read from, marked in the paper and boxed on the printed page.
• 1:15The history of a valueEach value's History records when it was extracted, checked, edited and validated, beside the checks that still stand.
• 1:34Editing a valueEdit a wrong number in place beside its evidence; the change is saved as a person's edit and shows in the value's History.
• 1:28Missing data, countedGaps keep their rows and get explained — a paper reporting nothing is stated, not hidden in a blank cell.

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