Name Info Provider Link
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=26365927.ui
free resource Wiley https://onlinelibrary.wiley.com/doi/10.1111/joim.12428