UNDATED FILE PHOTO - Undated file picture of Italian doctor Severino Antinori showing his book titled "My impossible sons". Antinori, the doctor who sparked a furore by helping post-menopausal women become granny mums said he had pioneered a new technique to help impotent men cultivating their sperm with the help of mice. Altough his extreme-sounding fertility treatment is sure to raise eyebrows, Antinori said it had already led to the birth of five babies and offered good hope for men desperate to have children for whom other methods have not worked.

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