title: Developmental neuroscience: two gradients are better than one.
authors.forename: Liqun
authors.initials: L
authors.lastname: Luo
mesh_terms: D000818:Animals; D001369:Axons / Q000378:metabolism; D001921:Brain / Q000166:cytology / Q000378:metabolism; D002642:Chick Embryo; D051157:Frizzled Receptors / Q000378:metabolism; D051379:Mice; D020794:Receptor Protein-Tyrosine Kinases / Q000235:genetics / Q000378:metabolism*; D036081:Receptors, Eph Family / Q000235:genetics / Q000378:metabolism; D012165:Retinal Ganglion Cells / Q000166:cytology* / Q000378:metabolism*; D015398:Signal Transduction; D051153:Wnt Proteins / Q000235:genetics / Q000378:metabolism*; D060508:Wnt3 Protein
chemical_list: D051157:Frizzled Receptors; D051153:Wnt Proteins; D060508:Wnt3 Protein; D020794:Receptor Protein-Tyrosine Kinases; D036081:Receptors, Eph Family; C118148:Ryk protein, mouse