The Supplier Audit Trail: How Research Laboratories Reconstruct Where a Reagent Came From

Six months after an experiment, a reviewer asks a question that sounds simple: which batch of reagent was used, and what was known about it at the time. In a well-run laboratory that question takes a few minutes to answer. In most others it cannot be answered at all, because the information was never captured in a form that survives the vial.

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