CLEC1B/MPIG6B protein level ratio in blood (Ontology of Biological Attributes identifier OBA_2055024) 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 megakaryocyte and platelet inhibitory receptor G6b (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 megakaryocyte and platelet inhibitory receptor G6b (human) in blood.