Migraine and colour retouchers.
D003116:Color; D006261:Headache / Q000453:epidemiology; D006801:Humans; D008881:Migraine Disorders / Q000453:epidemiology*; D009784:Occupational Diseases / Q000453:epidemiology*; D011327:Printing; D011795:Surveys and Questionnaires; D014852:Wales