The controversial surgical procedure is set to be attempted on a human patient in December 2017.
Computer scientist Valery Spiridonov is set to become the first man in history to undergo the procedure.
A leading surgeon believes it will soon be possible to perform a real-life head transplant on a human.
A woman in Sweden has given birth using a womb she received in a pioneering transplant operation.
A complete and fully functional thymus has been grown from cells in a groundbreaking new experiment.