title: [Vascular changes of collagen diseases--clinical significance of the study on vascular changes].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001808:Blood Vessels / Q000473:pathology*; D003095:Collagen Diseases / Q000473:pathology*; D005260:Female; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010488:Polyarteritis Nodosa / Q000473:pathology; D011697:Purpura, Thrombotic Thrombocytopenic / Q000473:pathology