1. Plasticity of Adult Stem Cells
Amy J Wagers, Irving L Weissman 
Cell 
Volume 116, Issue 5, Pages (March 2004)
DOI: /S (04)

2. Figure 1
Schematic Diagram Depicting Potential Mechanisms and Explanations for Observations of Adult Stem Cell Plasticity
See text for details. Tissue-specific stem cells are represented by orange or green ovals, pluripotent stem cells by blue ovals, and differentiated cells of the “orange” lineage by red ovals and of the “green” lineage by green hexagons.
Cell  , DOI: ( /S (04) )