Name Info Provider Link
subscription/membership/fee required Atypon https://www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.121.053409?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
subscription/membership/fee required Ingenta plc https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=144&issue=12&spage=e205&aulast=Nguyen
Heart Attack free resource MedlinePlus Health Information https://medlineplus.gov/heartattack.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=34543064.ui