A compound attribute that is the ratio of amount of chymotrypsin-like elastase family member 3A (human) in blood to amount of phospholipase A2 (human) in blood. The trait is Ontology of Biological Attributes id OBA_2054258 (CELA3A/PLA2G1B 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 phospholipase A2 (human) in blood.