title: Change in radiosensitivity on the development of sea urchin eggs during the early cleavage stage. II. Protection against x-ray irradiation by cysteamine.
mesh_terms: D000818:Animals; D003543:Cysteamine / Q000494:pharmacology*; D005260:Female; D008938:Mitosis; D010063:Ovum / Q000187:drug effects / Q000528:radiation effects*; D011830:Radiation Effects; D011837:Radiation-Protective Agents; D012617:Sea Urchins; D014965:X-Rays
chemical_list: D011837:Radiation-Protective Agents; D003543:Cysteamine