A compound attribute that is the ratio of amount of chymotrypsin-like elastase family member 3A (human) in blood to amount of carboxypeptidase B (human) in blood. The trait is OBA_2054254 (CELA3A/CPB1 protein level ratio in blood). Also known as: the ratio of amount of chymotrypsin-like elastase family member 3A (human) in blood to amount of carboxypeptidase B (human) in blood.