How far are we from printing hearts for transplant?

Three-dimensional printing of human organs is not some far-fetched fiction. Active research of the relevant technologies has gained pace around the globe, especially here in South Korea, where the academia, industry and government are paying keen attention to the convergence of medicine, mechanical and computer engineering.

For now, Korean technology has come as far as printing skins with cell-encapsulated bioink to replace animal tests.

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