The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Edward Bender:
Coronary Artery Bypass Graft Surgery (CABG) is a commonly performed operation used to improve symptoms of angina, prevent major heart attacks, and, in some cases, to prolong lifespan. Although the operation is relatively safe, there are potential risks of complications and death during or shortly after CABG procedures.This application is designed to give patients and their families and friends an estimate of what the chances for complications or death are for a patient who is considering CABG surgery. The calculator is based on data from the Society of Thoracic Surgeons National Database and the Online Risk Calculator. This adaptation of the data is meant to be educational, and not a tool for clinical decision making. Those judgments must be left to the patient and the healthcare providers caring for the patient. This application makes many assumptions about the patient's current and past medical history, and will not be as exact as risk assessments performed using more complete data.This application is provided on an "as is" basis only and without warranty or representation (whether expressed or implied) as to its accuracy or reliability. The author is not responsible for and does not accept liability for any direct or indirect loss or damages arising from or connected to the use of this information.