{HEAD ~ The cryopreservation protocols} of {TAIL ~ this invention} are surprisingly applicable to the single layer epidermal and dermal layers alone, trilayered cornea equivalent and mammalian skin 
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{ HEAD ~ The cryopreservation protocols } of { TAIL ~ this invention } are surprisingly applicable to the single layer epidermal and dermal layers alone , trilayered cornea equivalent and mammalian skin
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