Richter, M., Agren, P., Besse, J., Cöster, M., Kofoed, H., Maffulli, N., Rosenbaum, D., Steultjens, M., Alvarez, F., Boszczyk, A., Buedts, K., Guelfi, M., Liszka, H., Louwerens, J., Repo, J. P., Samaila, E., Stephens, M., & Witteveen, A. G. (2018). eFAS Score — Multilingual development and validation of a patient-reported outcome measure (PROM) by the score committee of the European Foot and Ankle Society (EFAS). Foot and ankle surgery, 24(3), 185–204. http://access.bl.uk/ark:/81055/vdc_100066126929.0x000018