After studying medicine at the University of Cape Town, South African surgeon Christiaan Barnard came to the US in 1955 to improve his surgical technique. There, he performed his first heart operation before returning to Cape Town, where he was soon appointed director of surgical research at the Groote Schuur Hospital. He made medical history there in 1967 when he completed the world’s first human heart transplant on 55-year-old Louis Washkansky. When was the first pediatric heart transplant? Discuss