Onicescu, D [Visual pigments]. [electronic resource] - Revista de chirurgie, oncologie, radiologie, o. r. l., oftalmologie, stomatologie. Seria: Oftalmologie - 89-92 p. digital Publication Type: English Abstract; Journal Article ISSN: 1220-0859 Subjects--Topical Terms: Color Vision Defects--physiopathologyHumansPhotoreceptor Cells--physiologyRetinal PigmentsVision Disorders--physiopathologyVision, Ocular--physiology