Despite the low number of hiPSC-driven studies of FOXG1 syndrome, several hiPSCs that originate from FOXG1 syndrome patients are available for further research and are deposited in different biobanks [63], e.g., the Coriell Institute for Medical Research, USA or the Biobank of the University of Siena, Italy [64]. The gene discussed is FOXG1; the disease is Down syndrome.