AUTHORS : Bernard B. A. Darmon M Galup C Lenoir-Viale M C Epidermis reconstructed from the outer root sheath of human hair follicle. Effect of retinoic acid 1993 Arch Dermatol Res 1993 ;285 (4):197-204 | Centre International de Recherches Dermatologiques Galderma (CIRD Galderma), Valbonne, France.