Ontology of Biological Attributes entry OBA_2042199 (level of leukocyte immunoglobulin-like receptor subfamily B member 3 in blood serum) is the amount of a leukocyte immunoglobulin-like receptor subfamily B member 3 when measured in blood serum. Also known as: blood serum leukocyte immunoglobulin-like receptor subfamily B member 3 amount.