OBA_2054018 (PILRB/THBD protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of paired immunoglobulin-like type 2 receptor beta (human) in blood to amount of thrombomodulin (human) in blood. Also known as: the ratio of amount of paired immunoglobulin-like type 2 receptor beta (human) in blood to amount of thrombomodulin (human) in blood.