title: Altered diurnal serum melatonin rhythm in blind men.
mesh_terms: D001766:Blindness / Q000097:blood*; D002940:Circadian Rhythm; D006801:Humans; D008297:Male; D008550:Melatonin / Q000097:blood*; D010870:Pineal Gland / Q000503:physiopathology
chemical_list: D008550:Melatonin