2The aging burden of hospitalization for heart failure in Chinese populations:evidence from the Macao Heart Failure StudyZhi-Nan LU，Mario Evora，Edmundo Lao，Man Ieng Pun，Weng Hong Pun，Monica Pon，Kong Chu，Pui I Ieong，Toi-Meng Mok，Yong-Jian WURESEARCH ARTICLE533-543
3Cardiovascular rehabilitation in patients aged 70-year-old or older: benefits on functional capacity, physical activity and metabolic profile in younger vs.older patientsMarta Fontes-Oliveira，Maria Trêpa，Patrícia Rodrigues，Preza Fernandes，Sandra Magalh(a)es，Sofia Cabral，Mário Santos，Severo TorresRESEARCH ARTICLE544-553
4Effects and mechanisms of glucose-insulin-potassium on post-procedural myocardial injury after percutaneous coronary interventionYi-Dan HAO，Peng HAO，Zheng WANG，Ying-Xin ZHAO，Zhi-Ming ZHOU，Yu-Yang LIU，De-An JIA，Hong-Ya HAN，Bin HU，Hua SHEN，Fei GAO，Guo-Zhong PAN，Zhen-Feng GUO，Shi-Wei YANG，Yu-Jie ZHOURESEARCH ARTICLE554-560
5Impact of number of run-off vessels on interwoven nitinol mesh stents patency in the femoropopliteal segmentGianluca Rigatelli，Marco Zuin，Fabio Dell'Avvocata，Dobrin Vassilev，Stefano Barison，Sabrina Osti，Alberto Mazza，Alberto SaccoRESEARCH ARTICLE561-565
6Transcatheter mitral valve implantation using a novel system: preclinical resultsJia-You TANG，Lin-He LU，Yang LIU，Lan-Lan LI，Yan-Yan MA，Shi-Qiang YU，Jin-Cheng LIU，Jian YANGRESEARCH ARTICLE566-573
7Test-retest reliability of the Mini Nutritional Assessment-Short Form (MNA-SF) in older patients undergoing cardiac rehabilitationFritz Kather，Miralem Hadzic，Teresa Hehle，Sarah Eichler，Julia Klein，Heinz V(o)ller，Annett SalzwedelLETTER TO THE EDITOR574-579
8Health care service usage and costs for high-needs elderly patients with heart failureAlessandra Buja，Riccardo Caberlotto，Carlo Pinato，Giulia Grotto，Maria Chiara Corti，Francesco Avossa，Elena Schievano，Vincenzo BaldoLETTER TO THE EDITOR580-584
9Treatment for hemoptysis after percutaneous closure of a large intralobar pulmonary sequestration in elderly patientJian-Ming WANG，Qi-Guang WANG，Duan-Zhen ZHANG，Xian-Yang ZHULETTER TO THE EDITOR585-588
10Electrocardiographic findings in an elderly patient before and after resolution of iatrogenic hyperkalemiaYun-Li XING，Hong-Wei LI，Chun-Yan JIANG，Wei HUANG，Feng FENG，Ying SUN，Fu-Sheng GULETTER TO THE EDITOR589-592
11COVID-19 pandemic: usefulness of telemedicine in management of arrhythmias in elderly peopleAnna Vittoria Mattioli，Andrea Cossarizza，Giuseppe BorianiLETTER TO THE EDITOR593-596
