A compound attribute that is the ratio of amount of hepatocyte growth factor receptor (human) in blood to amount of receptor-type tyrosine-protein phosphatase F (human) in blood. The trait is Ontology of Biological Attributes identifier OBA_2054444 (MET/PTPRF protein level ratio in blood). Also known as: the ratio of amount of hepatocyte growth factor receptor (human) in blood to amount of receptor-type tyrosine-protein phosphatase F (human) in blood.