Western blot analysis of FACS‐sorted HF and IFE cells at telogen revealed higher expression of pro‐survival BCL‐2 family proteins in HF and IFE (Lin–/CD49f+/SCA‐1– and Lin–/CD49f+/SCA‐1+ respectively) compared to non‐HF epidermal cells (Lin–/CD49f–) (Fig. 3C). The gene discussed is BCL2; the disease is hydrops fetalis.