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Competition for cell LDL uptake by LDL, Lp(a), and HDL. HepG2 cells were incubated with fluorescently labeled LDL and increasing amounts of unlabeled LDL, Lp(a), and HDL. Data represent values for duplicate wells at each unlabeled lipoprotein concentration as a percentage of control (uptake of fluorescent LDL without unlabeled lipoprotein). Error bars represent SD of the mean. Lg, log.
