Online Mendelian Inheritance in Man - Population genetics, references, and symptoms of polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy, also known as Nasu-Hakola disease, and as presenile dementia with bone cysts. - http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=221770