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Brown Thomas J, Kline MC, Gill LM, Yen JH, Duewer DL, Sniegoski LT, Sharpless KE. Preparation and value assignment of Standard Reference Material 968c Fat-Soluble Vitamins, Carotenoids, and Cholesterol in Human Serum. Clin Chim Acta. 2001 Mar;305(1-2):141–55. doi: 10.1016/s0009-8981(00)00429-0. PMID: 11249933. |