Fig4o. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/j.ydbio.2004.11.024] Dev Biol 278(2): 428-39, Trokovic R; Jukkola T; Saarimaki J; Peltopuro P; Naserke T; Weisenhorn DM; Trokovic N; Wurst W; Partanen J; Fgfr1-dependent boundary cells between developing mid- and hindbrain. Copyright 2004 [PMID:15680361]