Fig3D. Copyright: Reprinted with permission from Elsevier from [doi:10.1006/dbio.1996.0269] Dev Biol 179(2): 382-401, Flenniken AM; Gale NW; Yancopoulos GD; Wilkinson DG; Distinct and overlapping expression patterns of ligands for Eph-related receptor tyrosine kinases during mouse embryogenesis. Copyright 1996 [PMID:8903354]