Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0003-4975(98)00103-9
Coronary Artery Bypass Surgery free resource MedlinePlus Health Information https://medlineplus.gov/coronaryarterybypasssurgery.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=9564960.ui