Chetter, I., Spark, J., Dolan, P., Scott, D., & Kester, R. (1997). Quality of life analysis in patients with lower limb ischaemia: Suggestions for European standardisation. European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery, 13(6), 597-604. https://doi.org/10.1016/s1078-5884%2897%2980070-6