Impaired Ventilatory Efficiency Identifies High-Risk Mild-to-Moderate Chronic Obstructive Pulmonary Disease Zhishan Deng; Fan Wu; Qi Wan; Cuiqiong Dai; Lifei Lu; Zihui Wang; Kunning Zhou; Xiaohui Wu; Gaoying Tang; Huajing Yang; Jieqi Peng; Suyin Huang; Guannan Cai; Fangyan Wu; Junfeng Lin; Xiaoyu Wang; Changli Yang; Yongqing Huang; Rongchang Chen; Nanshan Zhong; Yumin Zhou; Pixin Ran;

New Classifications of COPD Severity Based on Impulse Oscillometry: A SAIO Grade Base on ECOPD Cohort in China Lifei Lu; Qi Wan; Gaoying Tang; Fan Wu; Zhishan Deng; Jieqi Peng; Cuiqiong Dai; Kunning Zhou; Xiaohui Wu; Shuqing Yu; Yongqing Huang; Changli Yang; Shengtang Chen; Pixin Ran; Yumin Zhou;

Effect of Carbocysteine on Exacerbations and Lung Function in Patients With Mild-to-Moderate Chronic Obstructive Pulmonary Disease: A Multicentre, Double-Blind, Randomized, Placebo-Controlled Trial Yumin Zhou; Fan Wu; Haiqing Li; Zhishan Deng; Li Lin; Hong Huang; Haiyan Zhao; Yiran Wang; Lingwei Wang; Qijian Cheng; Shan Cai; Zhiyi He; Yinghua Ying; Peiyu Huang; Heshen Tian; Jieqi Peng; Shan Xiao; Xiang Wen; Huajing Yang; Youlan Zhen; Zihui Wang; Ningning Zhao; Lifei Lu; Jianwu Xu; Qiuyue Wang; Pixin Ran;