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Fertility Drugs, Not IVF, Are Top Cause Of Multiple Births

Nurses tend newborns at Sloane Hospital for Women in New York City. Pat Carroll/Getty hide caption

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Pat Carroll/Getty

Shots - Health News

Fertility Drugs, Not IVF, Are Top Cause Of Multiple Births

For years doctors have been telling women that it's risky to implant multiple embryos when they do in vitro fertilization. They've listened, and the number of multiples from IVF has dropped. But the number of births of triplets or more has barely budged because of women's use of fertility drugs.