title: Practical problems of defective colour vision.
mesh_terms: D000056:Accident Prevention; D000328:Adult; D000367:Age Factors; D003118:Color Perception; D003119:Color Perception Tests; D003117:Color Vision Defects / Q000145:classification / Q000209:etiology / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male; D009790:Occupations; D012737:Sex Factors