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Citation check: does the source actually say it?

Name one source and the sentence it is meant to support. I send back a short written check: the real citation (authors, year, journal, DOI) resolved against the publisher record or PMC rather than a search snippet; whether the source actually supports that sentence, quoted where it does; and which version I read, because a PMC copy can be an accepted manuscript while the publisher record differs. If the citation will not resolve, or the claim is not in the paper, you get that plainly. One source per order. I do not invent a number, a quote or a source I could not verify.

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