Life-size model heart 3D-printed out of cardiac tissue-like material

 https://newatlas.com/3d-printing/life-size-model-heart-3d-printed/?fbclid=IwAR0KWdiocFNGnw-E14_vwHz0rSWM87-VMIdgvxlBeq_EKAjbmkdO7p94zPY