A compound attribute that is the ratio of amount of neutrophil cytosol factor 2 (human) in blood to amount of protein S100-A11 (human) in blood. The trait is NCF2/S100A11 protein level ratio in blood (OBA_2054660, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of neutrophil cytosol factor 2 (human) in blood to amount of protein S100-A11 (human) in blood.