The amount of a ankyrin repeat and SOCS box protein 13 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes id OBA_2080119 (level of ankyrin repeat and SOCS box protein 13 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid ankyrin repeat and SOCS box protein 13 (human) amount.