OBA_2055358 (FAP/THBS4 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of prolyl endopeptidase FAP (human) in blood to amount of thrombospondin-4 (human) in blood. Also known as: the ratio of amount of prolyl endopeptidase FAP (human) in blood to amount of thrombospondin-4 (human) in blood.