The amount of a cytochrome c oxidase assembly factor 4 homolog, mitochondrial (human) when measured in cerebrospinal fluid. The trait is level of cytochrome c oxidase assembly factor 4 homolog, mitochondrial (human) in cerebrospinal fluid (OBA_2081328). Also known as: cerebrospinal fluid cytochrome c oxidase assembly factor 4 homolog, mitochondrial (human) amount.