DUX4 and facioscapulohumeral muscular dystrophy: In contrast, DUX4 target genes identified via microarray (Geng et al, 2012) show greater than median expression in FSHD muscle and comprise the only DUX4 target gene set that on meta‐analysis discriminates FSHD from control muscle biopsies profiled in the microarray studies (Banerji et al, 2017).