Obstetrics & gynaecology

Pros and cons of egg banking

Freezing and storing your own eggs when you are not trying to get pregnant used to be rare. It was something young women with cancer might do, if treatment could badly damage their eggs or ability to ovulate.

Genetics

Questions, concerns about 'three-parent' baby

The surprise announcement that a healthy baby boy was born from a new technique mixing the DNA of two women and a man raises as many questions—scientific and ethical—as it settles, experts said Wednesday.

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