title: Growth cone collapse in response to electrical activity, cell contact and diffusible factors.
authors.affiliation: National Institute of Child Health and Human Development, Laboratory of Developmental Neurobiology, National Institutes of Heatlh, Bethesda, MD 20892.
authors.forename: R D
authors.initials: RD
authors.lastname: Fields
authors.forename: P G
authors.initials: PG
authors.lastname: Nelson
mesh_terms: D000818:Animals; D001369:Axons / Q000502:physiology* / Q000648:ultrastructure; D002450:Cell Communication / Q000502:physiology*; D003593:Cytoplasm / Q000502:physiology* / Q000648:ultrastructure; D006801:Humans; D009474:Neurons / Q000502:physiology* / Q000648:ultrastructure