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. 2017 Nov 3;52(10):678–683. doi: 10.1136/bjsports-2017-097503

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(A) Prevalence of current knee pain by age categories in the ex-footballer and general population; (B) Prevalence of TKR by age categories in the ex-footballer and general population; (C) Prevalence of radiographic knee osteoarthritis by age categories in the ex-footballer and general population.