Huber J, Dabis E, Huesler J, Ruflin G. Symptom assessment in lumbar stenosis/spondylolysis - patient questionnaire versus physician chart. Swiss Med Wkly [Internet]. 2009 Oct. 17 [cited 2024 Nov. 25];139(4142):610-. Available from: https://smw.ch/index.php/smw/article/view/1028