Two Texas sisters, ages 12 and 10, run in some of the most grueling races in the nation, but doctors say they are not in danger despite how young they are.
By BARRY BEARAK, New York Times
Sat, 11/03/2012 - 11:40pm
Two Texas sisters, ages 12 and 10, run in some of the most grueling races in the nation, but doctors say they are not in danger despite how young they are.