Fig3F. Copyright: Reprinted with permission from Elsevier from [doi:10.1006/dbio.1999.9355] Dev Biol 212: 307-22, Miquerol L; Gertsenstein M; Harpal K; Rossant J; Nagy A, Multiple developmental roles of VEGF suggested by a LacZ-tagged allele. Copyright 1999 [PMID:10433823]