{HEAD ~ The inventors} have discovered {TAIL ~ a method} for cryopreserving cultured tissue equivalents made from in vitro techniques so that the tissues maintain their viability and utility as equivalents of human tissues 
{ HEAD ~ The inventors } have discovered { TAIL ~ a method } for cryopreserving cultured tissue equivalents made from in vitro techniques so that the tissues maintain their viability and utility as equivalents of human tissues
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