The Society of Thoracic Surgeons (STS), founded in 1964, is a not-for-profit organization representing more than 6,500 cardiothoracic surgeons, researchers and other health care professionals in 85 countries who are part of the cardiothoracic surgery team. STS members are dedicated to ensuring the best possible outcomes for surgeries of the heart, lung and esophagus, as well as other surgical procedures within the chest. STS is honored to be among the first surgical groups to partner with the ABIM Foundation in the Choosing Wisely® campaign. This campaign extends the Society’s strong commitment to quality improvement and patient safety. As a nationally recognized leader in outcomes-based research, STS is dedicated to providing scientific evidence and support for discoveries that will ultimately help cardiothoracic surgeons, government, industry and others improve surgical outcomes and the quality of patient care.