Nørgaard Jensen , O., de Fine Olivarius , N., Hyltoft Petersen , P., Klitgaard , N. A., Blaabjerg , O., & Hørder , M. (1993). 6.1.1.1 Discrepancy in HbA1c Measurements Performed at Different Local Laboratories and at a Selected Central Reference Laboratory. Upsala Journal of Medical Sciences, 98(3), 275-282. https://doi.org/10.3109/03009739309179321