Cleveland Clinic surgeons in February transplanted a uterus from a deceased donor into 26-year-old Lindsey McFarland, who was born without one. Though the experimental surgery was initially thought successful, a raging infection forced removal of the organ within weeks. Cleveland Clinic hide caption

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Cleveland Clinic

A Transplanted Uterus Offers Hope, But Procedure Stirs Debate

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The Keils play with their twins, Matthew and Faith, at their home near Parker, Colo., in 2012. Ed Andrieski/AP hide caption

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Ed Andrieski/AP

For Fertility Treatment, Wounded Veterans Have To Pay The Bill

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The puppies in this litter are the first ever born through IVF Mike Carroll/Cornell University College of Veterinary Medicine hide caption

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Mike Carroll/Cornell University College of Veterinary Medicine

A surgical team at Sooam Biotech in Seoul, South Korea, injects cloned embryos into the uterus of an anesthetized dog. Rob Stein/NPR hide caption

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Rob Stein/NPR

Disgraced Scientist Clones Dogs, And Critics Question His Intent

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Eggs may be more vulnerable to freezing than embryos, but that's just one factor that affects the odds of having a baby with frozen eggs. Jean-Paul Chassenet/Science Source hide caption

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Jean-Paul Chassenet/Science Source

Frozen sperm straws and embryos are stored in liquid nitrogen, in a process known as cryopreservation. One question confronting the courts: Should embryos such as these be treated as property, or as children subject to custody action? Veronique Burger/Science Source hide caption

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Veronique Burger/Science Source

After A Divorce, What Happens To A Couple's Frozen Embryos?

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In the technique known as intracytoplasmic sperm injection, a fertility specialist uses a tiny needle to inject sperm into an egg cell. Mauro Fermariello/Science Source hide caption

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Mauro Fermariello/Science Source

Along with sperm, the in vitro procedure adds fresh mitochondria extracted from less mature cells in the same woman's ovaries. The hope is to revitalize older eggs with these extra "batteries." But the FDA still wants proof that the technique works and is safe. Chris Nickels for NPR hide caption

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Chris Nickels for NPR

Fertility Clinic Courts Controversy With Treatment That Recharges Eggs

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A doctor uses a microscrope to view a human egg during in vitro fertilization (IVF), which is used to fertilize eggs that have been frozen. Mauro Fermariello/ScienceSource hide caption

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Mauro Fermariello/ScienceSource

Women Can Freeze Their Eggs For The Future, But At A Cost

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Sperm are placed inside the egg with a needle during a fertility treatment called intracytoplasmic sperm injection. iStockphoto hide caption

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iStockphoto

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

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Pat Carroll/Getty

Tina Nevill of Essex, England, holds Poppy, who was conceived by in vitro fertilization. The U.K.'s health system records all IVF cycles performed in the country. Barcroft Media/Landov hide caption

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Barcroft Media/Landov

Human embryos under a microscope at an IVF clinic in La Jolla, Calif. Sandy Huffaker/Getty Images hide caption

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Sandy Huffaker/Getty Images

Can IVF Treatments Reverse A Woman's Biological Clock?

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