Current insights in visual pigment structure.
D000818:Animals; D001001:Anura; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D002645:Chickens; D003530:Cyprinidae; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008027:Light; D051381:Rats; D012168:Retinal Pigments; D013057:Spectrum Analysis; D014801:Vitamin A / Q000502:physiology
D012168:Retinal Pigments; D014801:Vitamin A