Ontology of Biological Attributes identifier OBA_2056468 (level of tumor necrosis factor ligand superfamily member 15 (human) in cerebrospinal fluid) is the amount of a tumor necrosis factor ligand superfamily member 15 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid tumor necrosis factor ligand superfamily member 15 (human) amount.