Intercellular communications during early development of Paracentrotus lividus.
D000818:Animals; D001757:Blastomeres / Q000648:ultrastructure*; D002450:Cell Communication; D007365:Intercellular Junctions / Q000648:ultrastructure*; D008854:Microscopy, Electron; D008938:Mitosis; D012617:Sea Urchins