title: Distal regeneration and symmetry.
abstract: A revision of the "polar coordinate model" shows how pattern formation in diverse regenerating systems can be understood in terms of strictly local cell interactions.
authors.forename: S V
authors.initials: SV
authors.lastname: Bryant
authors.forename: V
authors.initials: V
authors.lastname: French
authors.forename: P J
authors.initials: PJ
authors.lastname: Bryant