title: Demonstration of melatonin in amphibia.
mesh_terms: D000818:Animals; D001001:Anura; D001681:Biological Assay; D002850:Chromatography, Gel; D004838:Epiphyses / Q000032:analysis*; D008550:Melatonin / Q000032:analysis*
chemical_list: D008550:Melatonin