title: A polar co-ordinate system for positional information in the vertebrate neural retina.
mesh_terms: D000818:Animals; D008954:Models, Biological; D009024:Morphogenesis; D012038:Regeneration; D012160:Retina / Q000196:embryology* / Q000502:physiology; D012399:Rotation; D014795:Visual Pathways; D014981:Xenopus