The amount of a glycerophosphocholine cholinephosphodiesterase ENPP6 (human) when measured in cerebrospinal fluid. The trait is OBA_2059390 (level of glycerophosphocholine cholinephosphodiesterase ENPP6 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid glycerophosphocholine cholinephosphodiesterase ENPP6 (human) amount.