Risk factors for bronchiectasis in patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis XinXin Zhang; LiJian Pang; XiaoDong Lv; HaoYang Zhang;

A study on the intervention of eight-section brocade exercises in combination with comprehensive measures on the physical function status of patients with chronic obstructive pulmonary disease Jiezhen Li; Yan Lei; Meini Li;

A meta-analysis on the efficacy of endoscopic ultrasonography for treatment of pancreatic cancer Min Xuan; Na Li; Chunyan Wu;