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Flow chart of the NACOX study follow-up plan. w1, w2 and m3, m6, etc, denote weeks or months after injury or reconstruction. Each box denotes when a questionnaire will be sent; shaded boxes indicate extended questionnaires. Time points for clinical examination (blue arrows), MRI, lab and X-rays (black arrows) are indicated. Baseline questionnaire, clinical examination, MRI, lab and X-rays are within 6 weeks after the injury.
