title: A study of four cases of pseudoxanthoma elasticum.
mesh_terms: D000293:Adolescent; D000328:Adult; D004547:Elastic Tissue / Q000473:pathology / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011561:Pseudoxanthoma Elasticum / Q000473:pathology; D012867:Skin / Q000473:pathology / Q000648:ultrastructure