title: The rhodopsin content and the visual threshold of human rods.
mesh_terms: D000221:Adaptation, Ocular; D003623:Dark Adaptation; D003720:Densitometry; D006801:Humans; D007700:Kinetics; D008027:Light; D010786:Photoreceptor Cells / Q000032:analysis*; D012168:Retinal Pigments / Q000032:analysis* / Q000096:biosynthesis; D014785:Vision, Ocular
chemical_list: D012168:Retinal Pigments