FOXP3 and chronic thromboembolic pulmonary hypertension: Because we observed that in healthy individuals the CCR6+ CD45RA+ FoxP3- CD4+ T cell population contained both truly naive and TEMRA cells (DvU and IMB, unpublished results) it would be interesting to characterize this CCR6+CD45RA+ population in more detail in CTEPH patients and HCs.