The Joint Commission on International Patient Safety has a website that it calls "Patient Safety Practices."
Here is the introduction to the site: "Welcome to Patient Safety Practices, a new online resource for health care professionals and the public. Over 900 links to trusted patient safety websites are provided, with tips, tools and resources for addressing patient safety problems. The problem categories and topics have been culled from the Joint Commission’s Sentinel Event Database."
If you are looking for information on wrong site surgery, you will find links to a large number of sites, including this one from the American College of Surgeons.