Evidence-based extension of reagent shelf-life beyond expiry using patient-based moving averages, westgard sigma rules, and CLSI EP25on February 3, 2026 at 12:43 pm February 3, 2026 by ccinfoadmin Publication date: March 2026 Source: Clinical Biochemistry, Volume 142 Author(s): Mohamed Mokhtar Khelil, Tony Badrick