Ontology of Biological Attributes entry OBA_2054990 (CLEC4D/OSM protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of C-type lectin domain family 4 member D (human) in blood to amount of oncostatin-M (human) in blood. Also known as: the ratio of amount of C-type lectin domain family 4 member D (human) in blood to amount of oncostatin-M (human) in blood.