title: Quantification of a saponin steroid from the starfish Asterias vulgaris.
mesh_terms: D000818:Animals; D005843:Geography; D011283:Pregnenes / Q000032:analysis*; D012503:Saponins / Q000032:analysis*; D012621:Seasons; D013215:Starfish / Q000032:analysis*
chemical_list: D011283:Pregnenes; D012503:Saponins