title: Preface to reviews on embryonic stem cells and germ line.
authors.affiliation: Department of Development and Differentiation, Institute for Frontier Medical Sciences, Kyoto University, Japan. nnakatsu@frontier.kyoto-u.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Nakatsuji
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002460:Cell Line; D019070:Cell Lineage; D004622:Embryo, Mammalian / Q000502:physiology*; D005854:Germ Cells / Q000502:physiology*; D051379:Mice; D013234:Stem Cells / Q000502:physiology*