Ponzer, Sari, et al. “The Short Musculoskeletal Function Assessment Questionnaire (SMFA)Cross-Cultural Adaptation, Validity, Reliability and Responsiveness of the Swedish SMFA (SMFA-Swe)”. Acta Orthopaedica, vol. 74, no. 6, Jan. 2003, pp. 756-63, doi:10.1080/00016470310018324.