[A family study of the association between X-linked bulbospinal muscular atrophy (Kennedy-Alter-Sung type) and color blindness protan].
D000368:Aged; D003117:Color Vision Defects / Q000235:genetics*; D008040:Genetic Linkage; D006801:Humans; D008297:Male; D008875:Middle Aged; D009133:Muscular Atrophy / Q000235:genetics*; D013577:Syndrome; D014960:X Chromosome