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. 2004 Mar;48(3):954–960. doi: 10.1128/AAC.48.3.954-960.2004

FIG. 1.

FIG. 1.

Dose-response curves for plasma spiked with standard DHA showing the dilution factor values at various known concentrations: ○, 50.0 ng/ml and DF50 of 100.77; ▪, 12.50 ng/ml and DF50 of 21.62; ▵, 5.00 ng/ml and DF50 of 7.74.