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Fertility's Sickle-Cell Gene?

Gene Mutation Affects Sperm's Ability to get Around, Fertility

By Anette Breindl

Thursday, July 21, 2011
Almost 15 percent of couples are infertile, at least by the definition of the World Health Organization: no pregnancy after a year of trying without birth control. In about half of those cases, the male partner is the one who is infertile; and in nearly a fifth of those cases, no one can figure out why.

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