Union Medical College Huazhong University of Science and Technology Shenzhen Guangdong 518000 China;
Union Medical College Huazhong University of Science and Technology Shenzhen Guangdong 518000 China;
Union Medical College Huazhong University of Science and Technology Shenzhen Guangdong 518000 China;
Union Medical College Huazhong University of Science and Technology Shenzhen Guangdong 518000 China;
Shenzhen University Shenzhen Guangdong 518000 China;
chronic obstructive pulmonary disease; exercise training; home-based pulmonary rehabilitation;