PIEZO2 and Fatigable weakness: Variants were also considered in PIEZO2 (HGNC:26270) NM_022068.4:c.1535G>A, p.(Ser512Asn) seen in F32-001, CHRNE (HGNC:1966) NM_000080.4:c.103T>C, p.(Tyr35His) in F37-001, and MEPE (HGNC:13361) NM_001184697.2:c.278del, p.(Ser93IlefsTer3) in F5-001 because these 3 disease-associated genes, each of which can exhibit dominant inheritance, may cause symptomatology that could be mistaken for MBS including ophthalmoplegia (PIEZO2), myasthenia leading to CFP (CHRNE), and hereditary CFP with otosclerosis (MEPE), respectively.