Medical Breakthroughs tells the intriguing, exciting story behind revolutionary medical breakthroughs, from the first spark of an ingenious idea and preliminary research to laboratory testing, early experiments, and treatments. This book vividly illustrates that some heroic adventures take place in the frontiers of the mind, and some pioneers traverse vast, though microscopic, distances to further the endeavors of the human race. In the popular and accessible graphic nonfiction format, readers are introduced to heart transplants, bionics, and the discovery of DNA.