Melanocyte System for Studying Stem Cell Niche.- Establishment and Manipulation of Monkey and Human Embryonic Stem Cell Lines for Biomedical Research.- Human Embryonic Stem Cell Derivation and Directed Differentiation.- In Search of the Elusive Epidermal Stem Cell.- Corneal Cells for Regeneration.- Polycomb Gene Product Bmi-1 Regulates Stem Cell Self-Renewal.- Directed Differentiation of Neural and Sensory Tissues from Embryonic Stem Cells In Vitro.- Stem Cell Biology for Vascular Regeneration.