<p> <iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/nZxoMJAg6Ac" title="YouTube video player" width="560"></iframe></p> <p> In a first…
<p> US surgeons have successfully implanted a heart from a genetically modified pig in a 57-year-old man, a historic&nbsp; medical…