The amount of a killer cell immunoglobulin-like receptor 3DL3 (human) when measured in cerebrospinal fluid. The trait is level of killer cell immunoglobulin-like receptor 3DL3 (human) in cerebrospinal fluid (Ontology of Biological Attributes identifier OBA_2059843). Also known as: cerebrospinal fluid killer cell immunoglobulin-like receptor 3DL3 (human) amount.