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Patient-reported scores for complaints (VOC) and disability VOD (not corrected for temperature) for each arm and study phase.
VAS = visual analogue scale; VOC = visual analogue scale on complaints; VOD = visual analogue scale on disability.
Notes: Scores measured on 100-mm scales where higher values indicate more complaints (symptoms) or greater disability. Phase 0: no-treatment baseline; phase 1: first assigned treatment; phase 2: second assigned treatment.
