Can you print me five copies of that heart?

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      One day you might need a new kidney, liver, or heart. Imagine if you didn't have to wait for a donated organ. Believe it or not, 3-D printers might make this possible in the future.

      According to Fast Company's Co.Exist, Autodesk and Organovo are joining forces to create software that would be used to design human tissue for 3-D printing. Co.Exist reports:

      In the near future, the printed organs are expected to be used in research. But down the line, they could end up inside real, live humans--an alternative to today’s inefficient organ donation process.

      The complexity involved in doing so would be mind-boggling, but perhaps now is the time to throw out this ethical question: if we could print a human, should we?