Measurement properties of the most commonly used Foot- and Ankle-Specific Questionnaires: the FFI, FAOS and FAAM. A systematic review
A review of the foot function index and the foot function index - revised
Measures of Foot Pain, Foot Function, and General Foot Health
Adaptation and Validation of the Foot Function Index-Revised Short Form into Polish
https://pubmed.ncbi.nlm.nih.gov/29333446/Translation, cultural adaptation and validation of the foot function index - revised (FFI-R)
https://pubmed.ncbi.nlm.nih.gov/29081702/Validation of the Turkish version of the Revised Foot Function Index for patients with foot and ankle disorders
https://pubmed.ncbi.nlm.nih.gov/31431327/