Efficacy and safety of left atrial appendage closure procedure in patients with non-valvular atrial fibrillation with contraindication and/or failure for oral anticoagulants: A systematic review and meta-analysis Ricardo dos Santos Simões; Aline Frossard Ribeiro Bortoluzzi; Janaina Cardoso Nunes Marinho; Julia Simões Corrêa Galendi; Wanderley Marques Bernardo;

Clinical value of artificial intelligence 3D echocardiography in evaluating left atrial volume and pulmonary vein structure in patients with atrial fibrillation Xiaomin Yang; Shujun He; Yang Pang; Kun Rong;

Development and internal validation of a clinical prediction model for spontaneous abortion risk in early pregnancy Junqing Li; Jimei Yang; Min Lv; Xiang Wang; Zhijing Chen; Na Zhou; Xuetao Hou; Zhen Song;