Reviews QT and concentration-QTc evidence pack for the L3 task «QT and concentration-QTc». Produces a source-linked finding register with denominators and an explicit refuse list. Use when a practitioner asks to work this topic — e.g. "Please review the materials for QT and concentration-QTc and produce a sourced finding register \u2014 do not decide the clinical or regulatory outcome.". Do not use to decide the outcome of qt and concentration-qtc; approve or submit related documents; select or adjust a dose; speak for the sponsor to an agency.