The relationship between steps of 6MWT and COPD severity: a cross-sectional study

Hui-Zhen FanDepartment of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China, [email protected]

Ling-Ling WuDepartment of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China, [email protected]

Xi-Ping WuDepartment of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China, [email protected]

Ze-Kui FangDepartment of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China, [email protected]

Xi HeDepartment of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China, [email protected]

Hua-Peng YuDepartment of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China, [email protected]Correspondence[email protected]

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