OBA_2055378 (CD244/EDAR protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of natural killer cell receptor 2B4 (human) in blood to amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood. Also known as: the ratio of amount of natural killer cell receptor 2B4 (human) in blood to amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood.