A heart of gold may be hard to find, but a heart of silicone may be within reach.
원문출처 : http://www.cnn.com/2017/07/20/health/3-d-printed-heart-silicone-study/index.html
원문출처 : http://www.cnn.com/2017/07/20/health/3-d-printed-heart-silicone-study/index.html