ANXA3/ANXA4 protein level ratio in blood (OBA_2054285, an Ontology of Biological Attributes identifier) can be described as follows. A compound attribute that is the ratio of amount of annexin A3 (human) in blood to amount of annexin A4 (human) in blood. Also known as: the ratio of amount of annexin A3 (human) in blood to amount of annexin A4 (human) in blood.