title: Progesterone and estrone levels in the ovaries, pyloric ceca, and perivisceral fluid during the annual reproductive cycle of starfish, Asterias rubens.
mesh_terms: D000005:Abdomen / Q000378:metabolism; D000818:Animals; D001826:Body Fluids / Q000378:metabolism; D004970:Estrone / Q000378:metabolism*; D005260:Female; D010053:Ovary / Q000378:metabolism; D011374:Progesterone / Q000378:metabolism*; D011708:Pylorus / Q000378:metabolism; D012098:Reproduction; D012621:Seasons; D013215:Starfish / Q000378:metabolism*
chemical_list: D004970:Estrone; D011374:Progesterone