The initial observation is that cancer survivors have greater difficulty becoming fathers and use more assisted reproductive techniques, regardless of their age at diagnosis. (sciencedaily.com)
Such advances in the domestic chicken open the possibility of using advanced reproductive techniques for endangered birds to aid captive breeding programs. (reviverestore.org)
And do we really believe that those «surplus» embryos resulting from new reproductive techniques have any claim to our respect, never mind our protection? (firstthings.com)