FLI1/SH2B3 protein level ratio in blood (Ontology of Biological Attributes identifier OBA_2055253) can be described as follows. A compound attribute that is the ratio of amount of Friend leukemia integration 1 transcription factor (human) in blood to amount of SH2B adapter protein 3 (human) in blood. Also known as: the ratio of amount of Friend leukemia integration 1 transcription factor (human) in blood to amount of SH2B adapter protein 3 (human) in blood.