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Weykamp C, John G, Gillery P, English E, Ji L, Lenters-Westra E, Little RR, Roglic G, Sacks DB, Takei I; IFCC Task Force on Implementation of HbA1c Standardization.Weykamp C, et al. Among authors: gillery p.Clin Chem. 2015 May;61(5):752-9. doi: 10.1373/clinchem.2014.235333. Epub 2015 Mar 3.Clin Chem. 2015.PMID: 25737535Free PMC article.