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Jones PW, Anderson JA, Calverley PM, Celli BR, Ferguson GT, Jenkins C, Yates JC, Vestbo J, Spencer MD, The TORCH investigators. Health status in the TORCH study of COPD: treatment efficacy and other determinants of change. Respiratory Research. 2011 Dec 01;12(1):71. doi: 10.1186/1465-9921-12-71. |