A compound attribute that is the ratio of amount of granzyme A (human) in blood to amount of integrin beta-7 (human) in blood. The trait is GZMA/ITGB7 protein level ratio in blood (OBA_2053118, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of granzyme A (human) in blood to amount of integrin beta-7 (human) in blood.