title: Letter: The pineal gland: Another perspective.
mesh_terms: D003270:Contraceptive Agents; D005260:Female; D006801:Humans; D008550:Melatonin / Q000502:physiology; D010060:Ovulation; D010455:Peptides; D010870:Pineal Gland / Q000502:physiology*
chemical_list: D003270:Contraceptive Agents; D010455:Peptides; D008550:Melatonin