A compound attribute that is the ratio of amount of C-X-C motif chemokine 16 (human) in blood to amount of neurogenic locus notch homolog protein 1 (human) in blood. The trait is CXCL16/NOTCH1 protein level ratio in blood (OBA_2055091). Also known as: the ratio of amount of C-X-C motif chemokine 16 (human) in blood to amount of neurogenic locus notch homolog protein 1 (human) in blood.