Niedermann, K., Forster, A., Ciurea, A., Hammond, A., Uebelhart, D., & de Bie, R. (2011). Development and psychometric properties of a joint protection self-efficacy scale. Scandinavian Journal of Occupational Therapy, 18(2), 143-152. https://doi.org/10.3109/11038128.2010.483690