The amount of a aldo-keto reductase family 1 member C3 (human) when measured in cerebrospinal fluid. The trait is level of aldo-keto reductase family 1 member C3 (human) in cerebrospinal fluid (OBA_2057819). Also known as: cerebrospinal fluid aldo-keto reductase family 1 member C3 (human) amount.