title: Melatonin as a seasonal time-cue: a commercial story.
mesh_terms: D000818:Animals; D005260:Female; D008027:Light; D008550:Melatonin / Q000502:physiology*; D010507:Periodicity; D012098:Reproduction; D012621:Seasons; D013045:Species Specificity
chemical_list: D008550:Melatonin