title: Electron microscopic study of porphyrias.
mesh_terms: D000293:Adolescent; D000328:Adult; D002196:Capillaries / Q000648:ultrastructure; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D011164:Porphyrias / Q000473:pathology*; D012867:Skin / Q000648:ultrastructure*