J. T. S. Rodrigues, I. Morais, C. Peixoto, I. Sousa, and A. Morais, “Patient Satisfaction in Ambulatory Surgery: Spinal vs General Anaesthesia for Lower Limb Varicose Vein Stripping”, Rev Soc Port Anestesiol, vol. 29, no. 4, pp. 199–204, Jan. 2021.