title: Genetic, hormonal, and immune studies in a pair of identical twin boys discordant for lupus.
mesh_terms: D002648:Child; D005260:Female; D012739:Gonadal Steroid Hormones / Q000097:blood*; D006801:Humans; D007136:Immunoglobulins / Q000096:biosynthesis; D008180:Lupus Erythematosus, Systemic / Q000097:blood / Q000235:genetics* / Q000276:immunology; D007959:Lymphocyte Culture Test, Mixed; D008297:Male; D011247:Pregnancy; D014427:Twins; D014430:Twins, Monozygotic
chemical_list: D012739:Gonadal Steroid Hormones; D007136:Immunoglobulins