Stundienė, Ieva, et al. “Transcutaneous Tibial Nerve Stimulation for the Treatment of Faecal Incontinence: Results of a Prospective Study”. Acta Medica Lituanica, vol. 21, no. 2, Aug. 2014, pp. 91-98, https://doi.org/10.6001/actamedica.v21i2.2946.