The amount of a peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 (human) when measured in cerebrospinal fluid. The trait is OBA_2081723 (level of peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 (human) amount.