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Paper published by Dr Hong-Jen Yu:
Original Research
Burden of COPD in a government health care system: a retrospective observational study using data from the US Veterans Affairs population
Amir Sharafkhaneh, Nancy J Petersen, Hong-Jen Yu, et al
International Journal of Chronic Obstructive Pulmonary Disease 2010, 5:125-132
Published Date: 22 April 2010