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Fig. 7 Expression of stabilin2 (stab2). A: Dorsal view, anterior to the left. B: Anterior view, dorsal is up. C-F: Lateral view, anterior to the left. A: A flat-mounted embryo at the 10-somite stage. B-F: Whole-mount embryos at 22-somite (B,C), 24 hours postfertilization (hpf; D; inset in D, larger magnification of the trunk region), 36 hpf (E), 48 hpf (F) stage embryo, tail region. A: Note stab2 expression in the endothelial cell precursors in the anterior (arrowheads) and posterior (arrows) lateral plate mesoderm. B-F: Stab2 is expressed strongly in axial and venous head vessels including the cardinal vein tail plexus region, intersegmental and aortic arch vessels. D: Note that stab2 expression in the posterior cardinal vein is more intense than in the dorsal aorta. aa, aortic arches; ccv, common cardinal vein; cv, cardinal vein; hv, head vessels; da, dorsal aorta; isv, intersegmental vessels; mcev, middle cerebral vein; pcv, posterior cardinal vein; phbc, primordial hindbrain channel; pmbc, primordial midbrain channel.