NCF2/PSMD9 protein level ratio in blood (OBA_2054657) can be described as follows. A compound attribute that is the ratio of amount of neutrophil cytosol factor 2 (human) in blood to amount of 26S proteasome non-ATPase regulatory subunit 9 (human) in blood. Also known as: the ratio of amount of neutrophil cytosol factor 2 (human) in blood to amount of 26S proteasome non-ATPase regulatory subunit 9 (human) in blood.