http://www.visionarysurgeon.org/
An on-line educational resource for surgeons and medical professionals

http://www.sts.org
The official website of the Society of Thoracic Surgeons

http://www.aats.org/
The AATS promotes and fosters education and research in the field of cardiothoracic surgery

http://www.ctsnet.org
A leading source of educational and scientific research information

http://www.chestnet.org
The official website of the American college of chest physicians