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Liu WT, Kuo HP, Liao TH, Chiang LL, Chen LF, Hsu MF, Chuang HC, Lee KY, Huang CD, Ho SC. Low bone mineral density in COPD patients with osteoporosis is related to low daily physical activity and high COPD assessment test scores. Int J Chron Obstruct Pulmon Dis. 2015;10():1737–44. PMID: 26366066; PMCID: PMC4562728. |