OBA_2053871 (COL1A1/SOST protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of collagen alpha-1(I) chain (human) in blood to amount of sclerostin (human) in blood. Also known as: the ratio of amount of collagen alpha-1(I) chain (human) in blood to amount of sclerostin (human) in blood.