A compound attribute that is the ratio of amount of integrin alpha-11 (human) in blood to amount of integrin alpha-V (human) in blood. The trait is ITGA11/ITGAV protein level ratio in blood (OBA_2055531, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of integrin alpha-11 (human) in blood to amount of integrin alpha-V (human) in blood.