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