CD164/NUDT5 protein level ratio in blood (Ontology of Biological Attributes id OBA_2055280) can be described as follows. A compound attribute that is the ratio of amount of sialomucin core protein 24 (human) in blood to amount of ADP-sugar pyrophosphatase (human) in blood. Also known as: the ratio of amount of sialomucin core protein 24 (human) in blood to amount of ADP-sugar pyrophosphatase (human) in blood.