Systemic lupus erythematosus in a pair of male twins.
D000293:Adolescent; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000235:genetics*; D008297:Male; D011247:Pregnancy; D014430:Twins, Monozygotic