Yes, you read it right; for the first time ever, on 15th of April 2019, Israeli researchers of Tel Aviv University have printed a 3D heart, engineered entirely by human tissues. Up until this date, technological advancements had only led scientists to printing of simple tissues, with no blood vessels, making this newly engineered vascularized …
Source: https://journal.medizzy.com/first-3d-vascularized-heart/