Book excerpt: What does the Hippocratic oath actually say? Who originally discovered antibiotics? And is it true that technology now allows reconstructive surgery to use customized 3D-printed body parts? Find out the answers to these questions and many others in 30-Second Medicine, an intriguing visit to the world of illness and those who treat it. It takes the reader on an engrossing journey from the first "medicines", drawn direct from the natural world , to today's keyhole surgery, bionic limbs, and breakthrough drug treatments. It's an essential and engaging read for anyone who wants to know more about the contemporary state of medicine, and where it may go next.