Here, we not only quantified RNA levels of BCL-2-family members in both groups, but also analyzed the effect of the BH3-mimetics ABT-199, ABT-737, WEHI-539 and S63845 on eosinophils of healthy donors and an enlarged cohort of patients with hypereosinophilic disorders (n = 45, Supplementary Tables 1 and 2). Here, BCL2 is linked to hypereosinophilic syndrome.