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		We cannot conclude with certainty exactly how RA or poly-l-lysine affects the face, since the cells did not adhere properly. That fact , in itself, should indicate that face cells have some different properties than either the wing cells or hind limb cells. Unfortunately, our experiment was not successful in the way we wanted it to be, however we cannot lose sight of this ultimate realization that face cells have different properties. Hopefully, this insight will lead to future investigation of chondrogenesis in the craniofacial region.