Self-management advice, exercise and foot orthoses for plantar heel pain: the TREADON pilot and feasibility randomised trial oleh Linda S. Chesterton, Martin J. Thomas, Gordon Hendry, Ying Chen, David Goddin, Nicola Halliday, Sarah A. Lawton, Martyn Lewis, Christian D. Mallen, Hylton B. Menz, Nadine E. Foster, Edward Roddy