title: Investigations of a family with pili annulati associated with blue naevi.
mesh_terms: D005260:Female; D006197:Hair / Q000002:abnormalities* / Q000473:pathology; D006801:Humans; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D009508:Nevus, Pigmented / Q000235:genetics*; D010375:Pedigree; D012871:Skin Diseases / Q000235:genetics