A compound attribute that is the ratio of amount of carbonic anhydrase 6 (human) in blood to amount of delta and Notch-like epidermal growth factor-related receptor (human) in blood. The trait is CA6/DNER protein level ratio in blood (OBA_2054826). Also known as: the ratio of amount of carbonic anhydrase 6 (human) in blood to amount of delta and Notch-like epidermal growth factor-related receptor (human) in blood.