Which of the following assessment tools do you consider the most suitable to capture the multidimensional spectrum of MS fatigue?
1. Fatigue Impact Scale (FIS)
2. Modified Fatigue Impact Scale (MFIS)
3. Fatigue Severity Scale (FSS)
4. Fatigue Symptoms and Impacts Questionnaire-Relapsing Multiple Sclerosis (FSIQ-RMS)
5. SF-36 vitality scale