The trade newspaper Collegiate Baseball traced the method's origins to Boomer Walker and David Carter, two Southern Idaho coaches.

WSJ: College World Series: College Baseball Showing Signs of a Revolution With Catcher Wristbands

Dr Lesley Walker, director of information at Cancer Research UK, said the potential for screening using this method was huge, but he said it was still early days.

BBC: NEWS | Health | Test detects early ovarian cancer