title: Cytological and physiological activity of the ultimobranchial glands in the premetamorphic anuran Rana catesbeiana.
mesh_terms: D000818:Animals; D001001:Anura / Q000033:anatomy & histology* / Q000502:physiology*; D002118:Calcium / Q000378:metabolism*; D004702:Endocrine Glands / Q000166:cytology* / Q000502:physiology*; D007814:Larva / Q000502:physiology; D008675:Metamorphosis, Biological; D010012:Osteogenesis
chemical_list: D002118:Calcium