Similar results were obtained with hiMPs derived from a DMD patient and genetically‐corrected with a human artificial chromosome containing the entire 2.5 Mb DYSTROPHIN genetic locus (DYS‐HAC, Materials and Methods; Choi et al, 2016), demonstrating that even after genetic correction, hiMPs remain responsive to the DLL4 and PDGF‐BB treatment (Fig 5H and I). The gene discussed is DLL4; the disease is Duchenne muscular dystrophy.