RTT Rett Syndrome MECP2 Methyl CpG-binding protein 2 CREB1 cAMP Responsive Element Binding Protein 1 mTOR Mammalian Target of Rapamycin GABA Gamma-aminobutyric acid CDKL5 Cyclin-dependent kinase-like 5 FOXG1 Forkhead box G1 gene NGS Next generation sequencing WES Whole Exome Sequencing DEE Develop...