No.	Database	Search strategy
1	PubMed	(Telemedicine [Title/Abstract] OR Telemedicine [MeSH Terms] OR ehealth [Title/Abstract] OR mhealth [Title/Abstract] OR Telehealth [Title/Abstract] OR teleconsultation [Title/Abstract] OR telerehabilitation [Title/Abstract] OR “Remote Consultation”[Title/Abstract]) AND (“Cardiovascular diseases”[Title/Abstract] OR “cardiovascular diseases” [MeSH Terms] OR “Coronary heart disease”[Title/Abstract] OR “Peripheral arterial disease”[Title/Abstract] OR “rheumatic heart disease”[Title/Abstract] OR “congenital heart disease”[Title/Abstract] OR “Deep vein thrombosis”[Title/Abstract]) AND (Covid-19 [Title/Abstract] OR coronavirus [Title/Abstract] OR “SARS-COV-2”[Title/Abstract] OR “Sever acute respiratory syndrome coronavirus”[Title/Abstract])
2	Web of Science	TS = ((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”))))
3	Scopus	TITLE-ABS-KEY((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”))
4	The Cochrane Library	(“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”) in Title Abstract Keyword
5	Ovid Medline	((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”)).ti. or ((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”)).ab. or ((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”)).kw.
6	IEEE Xplore	(((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “teleconsultation” OR “telerehabilitation” OR “Remote Consultation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”)))
7	CINAHL	(“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) in Title Abstract Keyword AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) in Title Abstract Keyword AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”) in Title Abstract Keyword -(Word variations have been searched)
8	ProQuest	title((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”)) OR abstract (((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”)) OR mainsubjects ((“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”))
9	Google Scholar	allintitle: (“Telemedicine” OR “ehealth” OR “mhealth” OR “Telehealth” OR “telerehabilitation”) AND (“Cardiovascular diseases” OR “Coronary heart disease” OR “Peripheral arterial disease” OR “rheumatic heart disease” OR “congenital heart disease” OR “Deep vein thrombosis”) AND (“Covid-19” OR “coronavirus” OR “SARS-COV-2” OR “Sever acute respiratory syndrome coronavirus”)