healthline.com - Open-Heart Surgery: Risks, Procedure, and Preparation
medicalnewstoday.com - Open heart surgery: Timeline, recovery, and alternatives
verywellhealth.com - All About Open Heart Surgery and Recovery - verywellhealth.com
wikipedia.org - Cardiac surgery - Wikipedia
medlineplus.gov - Open heart surgery: MedlinePlus Medical Encyclopedia
myheart.net - Open Heart Surgery – Incredible Picture Guide! • MyHeart
webmd.com - Heart Bypass Surgery: Purpose, Procedure, Risks, Recovery
simplehand.org - Recovering from Open-Heart Surgery - Simple Hand Inc
mddk.com - Open Heart Surgery - Recovery time, Procedure, Complications