An 18-year-old woman requests emergency contraception after having unprotected vaginal intercourse approximately 18 hours ago. Today is day 12 of her normally 27- to 29-day menstrual cycle and she has no contraindications to the use of any currently available forms of emergency contraception. You advise her that:
Which of the following is a contraindication to estrogen/progestin-containing methods (combined oral contraception [COC], patch [Ortho Evra], or ring [NuvaRing])?
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