title: Position-dependent cell interactions and commitments in the formation of the leech nervous system.
authors.affiliation: Department of Anatomy and Cellular Biology, Harvard Medical School, Boston, Massachusetts 02115.
authors.forename: M
authors.initials: M
authors.lastname: Shankland
mesh_terms: D000818:Animals; D001757:Blastomeres / Q000166:cytology; D002454:Cell Differentiation; D002455:Cell Division; D007865:Leeches / Q000166:cytology / Q000196:embryology*; D009420:Nervous System / Q000166:cytology* / Q000196:embryology; D009457:Neuroglia / Q000166:cytology; D009474:Neurons / Q000166:cytology; D013234:Stem Cells / Q000166:cytology