1Blood lead level in Chinese adults with and without coronary artery diseaseShi-Hong LI，Hong-Ju ZHANG，Xiao-Dong LI，Jian CUI，Yu-Tong CHENG，Qian WANG，Su WANG，Chayakrit Krittanawong，Edward A El-Am，Rody G.Bou Chaaya，Xiang-Yu WU，Wei GU，Hong-Hong LIU，Xian-Liang YAN，Zhi-Zhong LI，Shi-Wei YANG，Tao SUNRESEARCH ARTICLE857-866
2Chronic kidney disease and risks of adverse clinical events in patients with atrial fibrillationSi-Tong LI，Chao JIANG，Liu HE，Qi-Fan LI，Zuohan DING，Jia-Hui WU，Rong HU，Qiang LV，Xu LI，Chang-Qi JIA，Yan-Fei RUAN，Man NING，Li FENG，Rong BAI，Ri-Bo TANG，Xin DU，Jian-Zeng DONG，Chang-Sheng MARESEARCH ARTICLE867-876
3Minimally invasive thoracoscopic left atrial appendage occlusion compared with transcatheter left atrial appendage closure for stroke prevention in recurrent nonvalvular atrial fibrillation patients after radiofrequency ablation: a prospective cohort studyJian-Long WANG，Kuo ZHOU，Zheng QIN，Wan-Jun CHENG，Ling-Zhi ZHANG，Yu-Jie ZHOURESEARCH ARTICLE877-885
4Clinical benefit of left atrial appendage closure in octogenariansYamen Mohrez，Steffen Gloekler，Steffen Schnupp，Wasim Allakkis，Xiao-Xia Liu，Monika Fuerholz，Johannes Brachmann，Stephan Windecker，Stephan Achenbach，Bernhard Meier，Caroline KleineckeRESEARCH ARTICLE886-896
5Periprocedural complications and one-year outcomes after catheter ablation for treatment of atrial fibrillation in elderly patients: a nationwide Danish cohort studyJesper Nielsen，Kristian Hay Kragholm，Sofie Brix Christensen，Arne Johannessen，Christian Torp-Pedersen，Steen Buus Kristiansen，Peter Karl Jacobsen，Peter Steen Hansen，Mogens Stig Djurhus，Christoffer Polcwiartek，Peter S?gaard，Anna Margrethe Th?gersen，Uffe Jakob Ortved Gang，Ole Dan J?rgensen，Filip Lyng Lindgren，Sam RiahiRESEARCH ARTICLE897-907
6Biomarkers in the clinical management of patients with atrial fibrillation and heart failureIoanna Koniari，Eleni Artopoulou，Dimitrios Velissaris，Mark Ainslie，Virginia Mplani，Georgia Karavasili，Nicholas Kounis，Grigorios TsigkasREVIEW908-951
7COVID-19 vaccine safety surveillance and emerging concerns of vaccine-induced immune thrombotic thrombocytopeniaShyh Poh TeoPERSPECTIVE952-956
8Endovascular interventions may save limbs in elderly subjects with severe lower extremity arterial diseaseMin-I SU，Cheng-Wei LIULETTER TO THE EDITOR957-967
9Coronary stent fracture in an octogenarian patient: from bad to worseAndreas S.Triantafyllis，Petros N.Fountoulakis，Georgios Charalampidis，Konstantinos Kotinas，Pavlos Tsinivizov，Dimitrios Varvarousis，Andreas Giannakopoulos，Sofia Apollonatou，Areti Stefanidou，Stamatios Chatzopoulos，Dimitrios Tsiptsios，Konstantinos Tsamakis，Konstantinos Kyfnidis，Leonidas E.PoulimenosLETTER TO THE EDITOR968-972
10Gastroprotection during long-term dual antiplatelet therapy:to give or not to give?Francesco Sbrana，Andrea Ripoli，Beatrice Dal PinoLETTER TO THE EDITOR973-974
