Standard IgM Anti-Beta 2 Glycoprotein 1 Unit

**Semantic type:** Quantitative Concept

**Definition:** An arbitrary unit for the quantitation of IgM antibodies to beta-2 glycoprotein 1, which has been normalized and calibrated to an assay standard.

**Synonyms:** - SMU - Standard IgM Anti-Beta 2 GP1 Units - Standard IgM Anti-Beta 2 Glycoprotein 1 Units - {SMU}