The history of cryopreservation of biological material, however, has shown that the optimization of a cryopreservation protocol for a particular cell does not necessarily give good results when used with another cell type or with {HEAD ~ other cells} in {TAIL ~ a tissue} 
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The history of cryopreservation of biological material , however , has shown that the optimization of a cryopreservation protocol for a particular cell does not necessarily give good results when used with another cell type or with { HEAD ~ other cells } in { TAIL ~ a tissue }
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