THORACIC SURGERY FOUNDATION (TSF) - HISTORY AND MISSION The Thoracic Surgery Foundation (TSF) is the charitable arm of The Society of Thoracic Surgeons (STS). It is a pivotal force for growth and vitality in the cardiothoracic surgery specialty, especially in the areas of research and academic career development. TSF was established in 1988 as a 501(c) (3) charitable organization and became the exclusive charitable arm of STS in 2014; STS is the largest organization in the world representing cardiothoracic surgeons and other members of the cardiothoracic surgery team. TSF has a 1.5M annual budget and over 7.5M in total assets. MISSION TSF’s mission is to foster the development of surgeon scientists in