title: Free choline in sea urchin embryos (Paracentrotus lividus).
mesh_terms: D000818:Animals; D002794:Choline / Q000032:analysis*; D004625:Embryo, Nonmammalian / Q000032:analysis*; D005260:Female; D010063:Ovum / Q000378:metabolism; D012617:Sea Urchins / Q000378:metabolism*; D013997:Time Factors
chemical_list: D002794:Choline