Carl and Gerty Cori were both born in Prague, Austria-Hungary (now the Czech Republic) in 1896. They entered the University of Prague's medical school at roughly the same time, each planning to become a physician. At some point during their student days, they met each other, fell in love, and teamed up to share laboratory research in biochemistry. They decided that they not only enjoyed working together but also preferred biochemical research to medical practice. But in 1920, after they married and obtained their medical degrees, only Carl was able to find a research position. It was in Vienna, Austria, and Gerty joined the staff of a hospital there, but they still longed to work together. In 1922, when Carl was offered a position as a biochemist at the New York Institute for the Study of Malignant Diseases in Buffalo, New York, he immigrated to the United States. Gerty followed him...