corinna's twin boys -- maarten, left, and linus -- were the first humans to be treated for their genetic disorder while still inside the womb..
twins linus, left, and maarten have more sweat glands and tooth precursors than their older brother joshua, 5, after being treated with a drug in utero..
the patient was treated at the royal devon & exeter nhs foundation trust..
chronic traumatic encephalopathy (cte), a degenerative brain disease, has been linked by medical researchers to the sort of hits football players endure..