Dubois, G Adult sphingomyelinase deficiency: report of 2 patients who initially presented with psychiatric disorders. [electronic resource] - Neurology Jan 1990 - 132-6 p. digital Publication Type: Case Reports; Journal Article ISSN: 0028-3878 Standard No.: 10.1212/wnl.40.1.132 doi Subjects--Topical Terms: AdultBronchoalveolar Lavage Fluid--metabolismChronic DiseaseFibroblasts--metabolismHumansLeukocytes--metabolismMaleNiemann-Pick Diseases--enzymologyPhosphoric Diester Hydrolases--deficiencyPsychotic Disorders--enzymologySphingomyelin Phosphodiesterase--deficiency