1. Molecular Regulation of Cellular Quiescence: A Perspective from Adult Stem Cells and Its Niches Wai-Kin So and Tom H. Cheung 2. An In Vitro Model of Cellular Quiescence in Primary Human Dermal Fibroblasts Mithun Mitra, Linda D. Ho, and Hilary A. Coller 3. Flow Cytometric Detection of G0 in Live Cells by Hoechst 33342 and Pyronin Y Staining