TY - GEN AU - Menaker,Michael TI - Circadian rhythms. Circadian photoreception SN - 1095-9203 PY - 2003///0131 KW - Animals KW - Biological Clocks KW - Circadian Rhythm KW - Cryptochromes KW - Darkness KW - Drosophila Proteins KW - Eye Proteins KW - Flavoproteins KW - genetics KW - Humans KW - Light KW - Mice KW - Mice, Knockout KW - Mutation KW - Photoreceptor Cells, Invertebrate KW - Photoreceptor Cells, Vertebrate KW - physiology KW - Receptors, G-Protein-Coupled KW - Reflex, Pupillary KW - Retinal Ganglion Cells KW - cytology KW - Rod Opsins KW - Suprachiasmatic Nucleus N1 - Publication Type: Journal Article; Comment UR - https://doi.org/10.1126/science.1081112 ER -