The amount of a methylmalonate-semialdehyde/malonate-semialdehyde dehydrogenase [acylating], mitochondrial (human) when measured in cerebrospinal fluid. The trait is OBA_2058465 (level of methylmalonate-semialdehyde/malonate-semialdehyde dehydrogenase [acylating], mitochondrial (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid methylmalonate-semialdehyde/malonate-semialdehyde dehydrogenase [acylating], mitochondrial (human) amount.