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Chinese
Research Progress of Risk Early-warning Factors of Acute Exacerbation of Chronic Obstructive Pulmonary Disease
LI Xiao-jun, WANG Ming-hang, LI Su-yun
Chinese General Practice . 2016, (
35
): 4408 -4412 . DOI: 10.3969/j.issn.1007-9572.2016.35.024
