HLA DR Beta 4 Histocompatibility Antigen Measurement

**Semantic type:** Laboratory Procedure

**Definition:** The determination of the amount of HLA DR Beta 4 antigen present in a sample.

**Synonyms:** - HLA DR Beta4 Antigen - HLA DR Beta4 Antigen - HLA-DR Beta4 Antigen - HLA-DRB4 Antigen Measurement - HLADRB4