CD4 and ICOS Expressing T-Lymphocyte Count

**Semantic type:** Laboratory Procedure

**Definition:** The determination of the number of T cells expressing CD4 and ICOS that are present in a sample.

**Synonyms:** - CD4 and ICOS Expressing T Cell Count - CD4+ ICOS T Cells Count - CD4+ ICOS+ T Cell Count - CD4+ ICOS-Expressing T Cell Count - CD4/ICOS Expressing T Cell Count