The cultured tissue equivalent is {TAIL ~ an in vitro model} of the equivalent human tissue, such as skin or cornea, which, when retrieved from storage can be used for transplantation or {HEAD ~ implantation} in vivo or for screening compounds in vitro 
The cultured tissue equivalent is { TAIL ~ an in vitro model } of the equivalent human tissue , such as skin or cornea , which , when retrieved from storage can be used for transplantation or { HEAD ~ implantation } in vivo or for screening compounds in vitro
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