Exercise training alone or with the addition of activity counseling improves physical activity levels in COPD: a systematic review and meta-analysis of randomized controlled trials
2016 ◽
Vol Volume 11
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pp. 3121-3136
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2018 ◽
Vol 219
(3)
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pp. 255.e1-255.e20
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2020 ◽
Vol 9
(5)
◽