Francesca "Frankie" Robertson will tell anyone who asks that she is the fastest girl on a tricycle.
She is certainly the happiest. As she barrels down the sidewalk after her older brothers, her blue eyes sparkle beneath the rabbit ears on her bright-pink bunny bicycle helmet. The 4-year-old's laughter echoes through the neighborhood. She is truly on a joy ride.
This may be a typical scene for most children, but for Frankie, it is miraculous. Just four years ago -- at birth -- she...Full Story