Medical Research Council dyspnoea grades (16).
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Adapted with permission from Fletcher CM, Elmes PC, Fairbairn MB, et al. The significance of respiratory symptoms and the diagnosis of chronic bronchitis in a working population. Br Med J 1959; 2∶257–266, as used in the UK National Health Service Quality and Outcomes Framework for COPD (16).
创建时间：
2015-12-02
