CRKL/MANF protein level ratio in blood (OBA_2054501) can be described as follows. A compound attribute that is the ratio of amount of Crk-like protein (human) in blood to amount of mesencephalic astrocyte-derived neurotrophic factor (human) in blood. Also known as: the ratio of amount of Crk-like protein (human) in blood to amount of mesencephalic astrocyte-derived neurotrophic factor (human) in blood.