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Percentages of metabolite values below lower limit of quantification at baseline (visit 1), week 12 (visit 8), and week 24 (visit 14) after daily oral administration of EE-drospirenone-levomefolate calcium (MTHF) and EE-drospirenone + FA.
Abbreviations: EE, ethinylestradiol; FA, folic acid; MTHF, 5-methyl-tetrahydrofolate.
