Ontology of Biological Attributes term OBA_2054421 (IL16/LSP1 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of pro-interleukin-16 (human) in blood to amount of lymphocyte-specific protein 1 (human) in blood. Also known as: the ratio of amount of pro-interleukin-16 (human) in blood to amount of lymphocyte-specific protein 1 (human) in blood.