All
 C18 Nutritional and Metabolic Diseases D009750 +
 C18.452 Metabolic Diseases D008659 +
 C18.452.648 Metabolism, Inborn Errors D008661 +
 C18.452.648.151 Brain Diseases, Metabolic, Inborn D020739 +
 C18.452.648.151.825 Sphingolipidoses D013106 +
 C18.452.648.151.825.300 Gangliosidoses D005733 +
 C18.452.648.151.825.300.300 Gangliosidoses GM2 D020143 +
 C18.452.648.151.825.300.300.700 Sandhoff Disease D012497 
 C18.452.648.151.825.300.300.850 Tay-Sachs Disease D013661