{HEAD ~ Cryopreservation} of harvested skin and {TAIL ~ cultured skin} or cornea equivalents by slow freezing 
of
{ HEAD ~ Cryopreservation } of harvested skin and { TAIL ~ cultured skin } or cornea equivalents by slow freezing
HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH