title: Stem cells: units of development, units of regeneration, and units in evolution.
authors.affiliation: Stanford University School of Medicine, Department of Pathology, Stanford University Medical Center, California 94305-5323, USA.
authors.forename: I L
authors.initials: IL
authors.lastname: Weissman
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005314:Embryonic and Fetal Development; D006801:Humans; D012038:Regeneration; D013234:Stem Cells / Q000502:physiology*