Artificially constructed human organs on the horizon?

The liver is arguably one of the most complex organs in the body due to the list of functions it carries out. Not only does it help to filter the blood but it synthesizes an array of proteins, strips worn erythrocytes out of the bloodstream, and produces a number of hormones. That's just the first page of the list. It's also unusual in that it is capable of regenerating and becoming fully functional once again given enough time and proper conditions. Except when it doesn't; there are a number of diseases and chronic conditions that can render the liver nonfunctional …

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