A compound attribute that is the ratio of amount of myeloid cell nuclear differentiation antigen (human) in blood to amount of eosinophil cationic protein (human) in blood. The trait is MNDA/RNASE3 protein level ratio in blood (OBA_2054584). Also known as: the ratio of amount of myeloid cell nuclear differentiation antigen (human) in blood to amount of eosinophil cationic protein (human) in blood.