title: Cell boundaries: knowing who to mix with and what to shout or whisper.
authors.affiliation: Anatomy and Developmental Biology, University College London, London WC1E 6BT, UK.
authors.forename: Lewis
authors.initials: L
authors.lastname: Wolpert
mesh_terms: D000818:Animals; D019521:Body Patterning; D002450:Cell Communication / Q000502:physiology; D019070:Cell Lineage; D029721:Drosophila Proteins / Q000378:metabolism; D004628:Embryonic Structures; D009024:Morphogenesis
chemical_list: D029721:Drosophila Proteins; C064196:dpp protein, Drosophila