STRATILATOVAS, Eugenijus, et al. “A Randomized Multicenter Trial to Compare Functional Outcome and Complications of Surgical Procedures for Low Rectal Cancers”. Acta Medica Lituanica, vol. 18, no. 1, Jan. 2011, pp. 37-42, https://doi.org/10.6001/actamedica.v18i1.1812.