OBA_2053231 (REG1A/TFF3 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of lithostathine-1-alpha (human) in blood to amount of trefoil factor 3 (human) in blood. Also known as: the ratio of amount of lithostathine-1-alpha (human) in blood to amount of trefoil factor 3 (human) in blood.