A compound attribute that is the ratio of amount of parkinson disease protein 7 (human) in blood to amount of protein S100-A4 (human) in blood. The trait is PARK7/S100A4 protein level ratio in blood (OBA_2055155). Also known as: the ratio of amount of parkinson disease protein 7 (human) in blood to amount of protein S100-A4 (human) in blood.