First stage in the preparation of 'artificial' skin. A special tool (a 'credo') is used to carefully separate the outer epidermis from the underlying dermis in a small piece of freshly- obtained human skin. Subsequently, the keratinocytes (cells of the epidermis) are separated in a centrifuge and 'sown' onto a small fragment of human dermis. After a number of days, the result is an enlarged section of reconstituted skin. Photographed in Prof. Jean Thivolet's laboratory l'hopital Edouard Herriot in Lyons, France.

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