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Credit: Graham G. Ramsay

ON THE LAMB: Dario Fauza performed fetal surgery on ovine patients.
While Dolly the cloned sheep has yet to disappear from the headlines, other ovines have made medical history. Dario Fauza, a fellow at Harvard Medical School and Children's Hospital in Boston, along with Anthony Atala, an assistant professor of surgery and urology, cultured bits of skin and bladder from sheep fetuses with a synthetic scaffold, then implanted the tissue into newborn sheep, to correct defects that resemble congenital anomalies in humans. The work was reported at the 44th Annual International Congress of the British Association of Paediatric Surgeons in Istanbul on July 23. Sheep were ideal candidates, Fauza notes: "Fetal surgery can trigger preterm labor, but the sheep is very...

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