Marshall, M., Jonsson, H., Helgadottir, G. P., Nicholls, E., Van Der Windt, D., Myers, H., & Dziedzic, K. (2014). Reliability of Assessing Hand Osteoarthritis on Digital Photographs and Associations With Radiographic and Clinical Findings. Arthritis Care & Research, 66(6), 828 - 836. https://doi.org/10.1002/acr.22225