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Open Access Research article

Prevalence and correlations with depression, anxiety, and other features in outpatients with chronic obstructive pulmonary disease in China: a cross-sectional case control study

Peian Lou*, Yanan Zhu, Peipei Chen, Pan Zhang, Jiaxi Yu, Ning Zhang, Na Chen, Lei Zhang, Hongmin Wu and Jing Zhao

BMC Pulmonary Medicine 2012, 12:53  doi:10.1186/1471-2466-12-53

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