Helper 9 T-Lymphocyte to Helper T-Lymphocyte Ratio Measurement

**Semantic type:** Laboratory Procedure

**Definition:** The determination of the ratio of T-lymphocytes helper 9 to T-lymphocytes helper present in a sample. The measurement may be expressed as a ratio or percentage.

**Synonyms:** - T-Lymphocytes Helper 9/T-Lymphocytes Helper - TH9TH - TLym Help 9/TLym Help - TLym Help 9/TLym Help