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Updated: October 1, 2013 10:43AM
A 30-year-old infertile woman gave birth after surgeons removed her ovaries and re-implanted tissue they treated in a lab, researchers report.
The experimental technique was only tried in a small group of Japanese women with a specific kind of infertility problem, but scientists hope it can also help women in their early 40s who have trouble getting pregnant because of their age.
The new mother gave birth to a son in Tokyo last December, and she and the child continue to be healthy.