When the Wizard of Oz" that "hearts will never be practical until they can be made unbreakable," he was being technologically visionary. A few weeks after the first successful implant of the world's smallest and lightest ventricular assist device (VAD) at the Heidelberg University...

British scientists have grown part of a human heart from stem cells for the first time. Read more at: https://news.bbc.co.uk/1/hi/health/6517645.stm