The aorta is the large blood vessel that carries blood from the heart to rest of the body. Just before birth this vessels gets constricted(stenosis)and goes undetected many a times. JCP William in 1961 was the first to correlate this defect with mental retardation. Later Beuren also noticed a subsequent heart defect causing narrowing ofContinue reading “William’s Elfin Have Happy Heart,This Heart Has No Cure!”