Jessica Mazzone is recovering from operation by Dr. John Boockvar. Writhing in pain inside a dilapidated hospital in the Dominican Republic, Brooklyn native Jessica Mazzone didn't think she'd ever walk again. The 28-year-old flight attendant had fallen three stories from a hotel balcony on the eastern tip of the island, snapping her spine and shattering her left leg. Local doctors insisted they had to operate on her at the hospital. A journey to the U.S. would almost certainly leave her paralyzed, Mazzone was told. Her family feared the worst until a relative suggested they contact a famed surgeon who...