A compound attribute that is the ratio of amount of C-X-C motif chemokine 10 (human) in blood to amount of tryptophan--tRNA ligase, cytoplasmic (human) in blood. The trait is CXCL10/WARS protein level ratio in blood (OBA_2055184, an Ontology of Biological Attributes id). Also known as: the ratio of amount of C-X-C motif chemokine 10 (human) in blood to amount of tryptophan--tRNA ligase, cytoplasmic (human) in blood.