unilateral taVNSTranscutaneous auricular vagus nerve stimulationtaVNSbilateral taVNS17-item Hamilton Depression Rating ScaleNarcolepsy type 1NT1Xijing HospitalChiCTR2500110531
…ther (1) bilateral taVNS (active stimulation on both ears), (2) unilateral taVNS (active stimulation on the left ear only) or (3) sham taVNS (mi…