A compound attribute that is the ratio of amount of carbonic anhydrase 2 (human) in blood to amount of hydroxyacylglutathione hydrolase, mitochondrial (human) in blood. The trait is Ontology of Biological Attributes term OBA_2055736 (CA2/HAGH protein level ratio in blood). Also known as: the ratio of amount of carbonic anhydrase 2 (human) in blood to amount of hydroxyacylglutathione hydrolase, mitochondrial (human) in blood.