Analysis of Respiratory Mechanisms in Chronic Obstructive Pulmonary Disease Patients Under the Effects of Penehyclidine Hydrochloride Combined with Continuous Positive Airway Pressure Ventilation. - Zhiyuan Chen; Jianhua Wu; Yuyu Fu; Xiaohua Gao; Chunling Huang; Xiaoting Xu; Yan Li (J. Medical Imaging Health Informatics, 2020)