Ontology of Biological Attributes id OBA_2053963 (DFFA/HPCAL1 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of DNA fragmentation factor subunit alpha (human) in blood to amount of hippocalcin-like protein 1 (human) in blood. Also known as: the ratio of amount of DNA fragmentation factor subunit alpha (human) in blood to amount of hippocalcin-like protein 1 (human) in blood.