Stromal cell-derived factor-1 (chemokine C-X-C motif ligand 12) and chemokine C-X-C motif receptor 4 are required for migration of gonadotropin-releasing hormone neurons to the forebrain - Schwarting,G.A.; Henion,T.R.; Nugent,J.D.; Caplan,B.; Tobet,S. (J Neurosci, 2006)