CLEC1B/VSIR protein level ratio in blood (OBA_2055032) can be described as follows. A compound attribute that is the ratio of amount of C-type lectin domain family 1 member B (human) in blood to amount of V-type immunoglobulin domain-containing suppressor of T-cell activation (human) in blood. Also known as: the ratio of amount of C-type lectin domain family 1 member B (human) in blood to amount of V-type immunoglobulin domain-containing suppressor of T-cell activation (human) in blood.