title: Discoid lupus erythematosus. A study of sex and age at onset.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D002648:Child; D002675:Child, Preschool; D003718:Denmark; D005260:Female; D006801:Humans; D007223:Infant; D008179:Lupus Erythematosus, Discoid / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012723:Sex