The amount of a protein tyrosine phosphatase type IVA 3 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes id OBA_2056345 (level of protein tyrosine phosphatase type IVA 3 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid protein tyrosine phosphatase type IVA 3 (human) amount.