PMP22 and Charcot-Marie-Tooth disease type 1A: Mutations or genetic alterations, such as gene duplication, in PMP22 are responsible for different inherited peripheral neuropathies, among which we find Charcot–Marie–Tooth type 1A (CMT1A) hereditary neuropathy with liability to pressure palsies (HNPP) and a subtype of Dejerine–Sottas Syndrome (DSS) [68].