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A comment on How to 3-D print a heart. Parent comment

Re:How to 3-D print a heart by jakobegger on Sunday October 25, 2015 @04:51PM (#10448367)
The same story with a less misleading title yesterday got fewer upvotes: https://news.ycombinator.com/item?id=10442755

(and even the arteries they printed are probably not actually functional)

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Re:How to 3-D print a heart by agumonkey on Sunday October 25, 2015 @05:10PM (#10448443)
At best I thought they were scaffold for another step, like covering the printed 'tree' with an elastic coating that would then be an 'artery'.
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