title: Linkage studies in X-linked retinitis pigmentosa.
mesh_terms: D001789:Blood Group Antigens; D003118:Color Perception; D008040:Genetic Linkage; D006801:Humans; D011995:Recombination, Genetic; D012174:Retinitis Pigmentosa / Q000235:genetics*; D012730:Sex Chromosomes
chemical_list: D001789:Blood Group Antigens