title: Serum thyroxine concentrations in the pacific hagfish and lamprey and in the leopard frog.
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001667:Binding, Competitive; D005399:Fishes / Q000097:blood*; D006196:Hagfishes / Q000097:blood*; D007798:Lampreys / Q000097:blood; D011894:Rana pipiens / Q000097:blood*; D013974:Thyroxine / Q000097:blood*
chemical_list: D013974:Thyroxine