1Intracardiac echocardiography in the diagnosis and closure of patent foramen ovaleKang-Ning HAN，Xiao-Teng MA，Shi-Wei YANG，Yu-Jie ZHOUEDITORIAL697-701
2In-hospital outcomes of transapical versus surgical aortic valve replacement:from the U.S.national inpatient sampleAshraf Abugroun，Osama Hallak，Ahmed Taha，Alejandro Sanchez-Nadales，Saria Awadalla，Hussein Daoud，Efehi Igbinomwanhia，Lloyd W KleinRESEARCH ARTICLE702-710
3Prospective evaluation of health status,quality of life and clinical outcomes following implantable defibrillator generator exchangeFaisal M Merchant，John Larson，Leon Darghosian，Paige Smith，Soroosh Kiani，Stacy Westerman，Anand D.Shah，David S.Hirsh，Michael S.Lloyd，Angel R.Leon，Mikhael F.El-ChamiRESEARCH ARTICLE720-727
4Beta-blockers and 1-year clinical outcomes in hospitalized heart failure patients with atrial fibrillationFu-Wei XING，Li-Hua ZHANG，Hai-Bo ZHANG，Xue-Ke BAI，Dan-Li HU，Xin ZHENG，Jing LIRESEARCH ARTICLE728-738
5Digital literacy as a potential barrier to implementation of cardiology tele-visits after COVID-19 pandemic:the INFO-COVID surveyGiuseppe Boriani，Anna Maisano，Niccolò Bonini，Alessandro Albini，Jacopo Francesco Imberti，Andrea Venturelli，Matteo Menozzi，Valentina Ziveri，Vernizia Morgante，Giovanni Camaioni，Matteo Passiatore，Gerardo De Mitri，Giulia Nanni，Denise Girolami，Riccardo Fontanesi，Valerio Siena，Daria Sgreccia，Vincenzo Livio Malavasi，Anna Chiara Valenti，Marco VitoloRESEARCH ARTICLE739-747
6Cardiac hybrid imaging:novel tracers for novel targetsAndrea Ponsiglione，Raffaele Ascione，Carmela Nappi，Massimo Imbriaco，Michele Klain，Renato Cuocolo，Alberto Cuocolo，Mario PetrettaREVIEW748-758
7Advances in telemedicine for the management of the elderly cardiac patientNadim El Jamal，Bernard Abi-Saleh，Hussain Isma'eelREVIEW759-767
8Cellular signaling pathways of T cells in giant cell arteritisHai-Yan LI，Jun-Nan XU，Zong-Wen SHUAIREVIEW768-778
9Orthostatic hypertension and adverse clinical outcomes in adults and older peopleSarah Damanti，Paolo D Rossi，Matteo CesariLETTER TO THE EDITOR779-782
