GJB2 and sensorineural hearing loss disorder: In our study, 56 (54.90%) sensorineural hearing loss (SNHL) patients had homozygous (47—c.35delG, 5—c.358–360delGAG, total 50.98%) and compound heterozygous (3—c.35delG/c.313–326del14, 1—c.35del/c.358–360delGAG, 3.92% in total) GJB2 variants.