title: Developmental biology. Hedgehog keeps to the left.
authors.forename: L
authors.initials: L
authors.lastname: Wolpert
authors.forename: N A
authors.initials: NA
authors.lastname: Brown
mesh_terms: D028341:Activins; D000818:Animals; D002642:Chick Embryo; D004625:Embryo, Nonmammalian / Q000033:anatomy & histology; D047108:Embryonic Development; D004627:Embryonic Induction / Q000235:genetics / Q000502:physiology*; D053823:Hedgehog Proteins; D007265:Inhibins / Q000235:genetics / Q000502:physiology; D011506:Proteins / Q000235:genetics / Q000502:physiology*; D015534:Trans-Activators
chemical_list: D053823:Hedgehog Proteins; D011506:Proteins; D015534:Trans-Activators; D028341:Activins; D007265:Inhibins