CD22/TCL1A protein level ratio in blood (Ontology of Biological Attributes id OBA_2055374) can be described as follows. A compound attribute that is the ratio of amount of B-cell receptor CD22 (human) in blood to amount of T-cell leukemia/lymphoma protein 1A (human) in blood. Also known as: the ratio of amount of B-cell receptor CD22 (human) in blood to amount of T-cell leukemia/lymphoma protein 1A (human) in blood.