The amount of a MAP/microtubule affinity-regulating kinase 3 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes id OBA_2057532 (level of MAP/microtubule affinity-regulating kinase 3 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid MAP/microtubule affinity-regulating kinase 3 (human) amount.