The amount of a epidermal growth factor receptor kinase substrate 8-like protein 1 (human) when measured in cerebrospinal fluid. The trait is level of epidermal growth factor receptor kinase substrate 8-like protein 1 (human) in cerebrospinal fluid (OBA_2080025). Also known as: cerebrospinal fluid epidermal growth factor receptor kinase substrate 8-like protein 1 (human) amount.