A compound attribute that is the ratio of amount of T-cell leukemia/lymphoma protein 1A (human) in blood to amount of tumor necrosis factor receptor superfamily member 13C (human) in blood. The trait is TCL1A/TNFRSF13C protein level ratio in blood (OBA_2053041). Also known as: the ratio of amount of T-cell leukemia/lymphoma protein 1A (human) in blood to amount of tumor necrosis factor receptor superfamily member 13C (human) in blood.