In London, a family's unborn son had been diagnosed in the womb with a rare congenital condition known as Tetralogy of Fallot with absent pulmonary valve syndrome...

As ambassadors the children will represent the thousands of children cared for annually by the hospital....

The pioneering procedure was successfully performed by Katrina Stidham, MD...

Dr. Rosenzweig is an internationally recognized expert in the medical field of pulmonary hypertension...