The amount of a diphosphoinositol polyphosphate phosphohydrolase 3-beta (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes id OBA_2080395 (level of diphosphoinositol polyphosphate phosphohydrolase 3-beta (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid diphosphoinositol polyphosphate phosphohydrolase 3-beta (human) amount.