The amount of a musculoskeletal embryonic nuclear protein 1 (human) when measured in cerebrospinal fluid. The trait is level of musculoskeletal embryonic nuclear protein 1 (human) in cerebrospinal fluid (OBA_2059669, an Ontology of Biological Attributes id). Also known as: cerebrospinal fluid musculoskeletal embryonic nuclear protein 1 (human) amount.