Marshall, M., Jonsson, H., Helgadottir, G. P., Nicholls, E., Myers, H., Jansen, V., & van der Windt, D. (2019). Longitudinal validity of using digital hand photographs for assessing hand osteoarthritis progression over 7 years in community-dwelling older adults with hand pain. BMC Musculoskeletal Disorders, 20, Article 484. https://doi.org/10.1186/s12891-019-2829-0