A compound attribute that is the ratio of amount of cysteine-rich motor neuron 1 protein (human) in blood to amount of neuropilin-2 (human) in blood. The trait is Ontology of Biological Attributes entry OBA_2054493 (CRIM1/NRP2 protein level ratio in blood). Also known as: the ratio of amount of cysteine-rich motor neuron 1 protein (human) in blood to amount of neuropilin-2 (human) in blood.