BLVRB/CA3 protein level ratio in blood (OBA_2053297) can be described as follows. A compound attribute that is the ratio of amount of flavin reductase (NADPH) (human) in blood to amount of carbonic anhydrase 3 (human) in blood. Also known as: the ratio of amount of flavin reductase (NADPH) (human) in blood to amount of carbonic anhydrase 3 (human) in blood.