The amount of a procollagen C-endopeptidase enhancer 2 (human) when measured in cerebrospinal fluid. The trait is level of procollagen C-endopeptidase enhancer 2 (human) in cerebrospinal fluid (Ontology of Biological Attributes id OBA_2081608). Also known as: cerebrospinal fluid procollagen C-endopeptidase enhancer 2 (human) amount.