CD8A and MHC class II deficiency: The results of our studiesdemonstrate that some of the V α-gene segments are used less frequent in theCD4+CD8– T-cell subset of the patient, whereas the majority of the TCR V α- andV ß-gene segments investigated were used with similar frequencies in both subsets in thetype-III Bare Lymphocyte Syndrome patient compared to healthy control familymembers.