Opsommer E, Hilfiker R, Raval-Roland B, Crombez G, Rivier G. Test-retest reliability of the Örebro Musculoskeletal Pain Screening Questionnaire and the Situational Pain Scale in patients with chronic low back pain. Swiss Med Wkly [Internet]. 2013 Dec. 1 [cited 2024 Nov. 24];143(4950):w13903. Available from: https://smw.ch/index.php/smw/article/view/1787