1Hearing loss and cognitive decline among older adults with atrial fibrillation:the SAGE-AF studyWei-Jia WANG，Darleen Lessard，Hawa Abu，David D.McManus，Tanya Mailhot，Jerry H.Gurwitz，Robert J.Goldberg，Jane SaczynskiRESEARCH ARTICLE177-183
2History of major bleeding predicts risk of clinical outcome of patients with atrial fibrillation: results from the COOL-AF registryRungroj Krittayaphong，Arjbordin Winijkul，Wattana Wongtheptien，Chaiyasith Wongvipaporn，Treechada Wisaratapong，Rapeephon Kunjara-Na-Ayudhya，Smonporn Boonyaratvej，Pontawee Kaewcomdee，Ahthit YindeengamRESEARCH ARTICLE184-192
3Association of atherosclerotic plaque features with collateral circulation status in elderly patients with chronic carotid stenosisHui-Min XU，Ran HUO，Rui-Jing XIN，Dan-Dan YANG，Ying LIU，Ning LANG，Xi-Hai ZHAO，Tao WANG，Hui-Shu YUANRESEARCH ARTICLE202-209
4Growth differentiation factor-15 is a prognostic marker in patients with intermediate coronary artery diseaseWei WANG，Xian-Tao SONG，Yun-Dai CHEN，Fei YUAN，Feng XU，Min ZHANG，Kai TAN，Xing-Sheng YANG，Xian-Peng YU，Kong-Yong CUI，Shu-Zheng LYURESEARCH ARTICLE210-216
5Hypoxia in acute cardiac injury of coronavirus disease 2019: lesson learned from pathological studiesJing NAN，Yu-Bo JIN，Yunjung Myo，Ge ZHANGLETTER TO THE EDITOR221-223
6A novel case of transcatheter mitral valve-in-valve replacement using Mi-thosTM systemJia-You TANG，Yang LIU，Jian YANGLETTER TO THE EDITOR229-233
7Percutaneous recanalization of total saphenous vein graft occlusion with excimer laser treatmentYuan HAN，Quan-Min JING，Qian-Cheng WANG，Yan-Bin SU，Guo-Jun CHENLETTER TO THE EDITOR234-240
