Ontology of Biological Attributes entry OBA_2053380 (CD84/CDKN1A protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of SLAM family member 5 (human) in blood to amount of cyclin-dependent kinase inhibitor 1 (human) in blood. Also known as: the ratio of amount of SLAM family member 5 (human) in blood to amount of cyclin-dependent kinase inhibitor 1 (human) in blood.