What follows are citations for some of the larger published studies looking at VNS. Patients and psychiatrists will often be involved in applying for funding for further assessment/ treatment, and it is helpful to be able to state what the evidence is. All of these papers should either be available through the NHS e-library, or through any NHS/ hospital library.
An excellent overview of VNS studies with summaries of each of the study.
Thanks Therapeutic Neuromodulation