(1914-1987), Canadian surgeon. He He devised the operation known as the "Mustard Operation" to correct a complex inborn error in "blue babies" in which the arteries and veins to and from the heart are switched so that they link up with the wrong heart chambers.
(1898-1986), American physician. Known for research into congenital heart defects that caused anoxemia, the so-called blue baby syndrome, a disorder resulting from insufficient oxygen reaching the heart. With Alfred Blalock, she perfected the Blalock-Taussig operation to alleviate anoxemia, a congenital heart defect.