Ontology of Biological Attributes term OBA_2053799 (MEGF9/MET protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of multiple epidermal growth factor-like domains protein 9 (human) in blood to amount of hepatocyte growth factor receptor (human) in blood. Also known as: the ratio of amount of multiple epidermal growth factor-like domains protein 9 (human) in blood to amount of hepatocyte growth factor receptor (human) in blood.