TY - GEN AU - Neitz,J AU - Neitz,M AU - He,J C AU - Shevell,S K TI - Trichromatic color vision with only two spectrally distinct photopigments SN - 1097-6256 PY - 1999///1119 KW - Amino Acid Substitution KW - Color Vision Defects KW - genetics KW - Discrimination, Psychological KW - physiology KW - Genetic Linkage KW - Humans KW - Retinal Pigments KW - X Chromosome N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1038/13185 ER -