Discoveries in Respiratory Medicine (AUDIO) American Thoracic Society Your browser does not support the audio element. Caption American Thoracic Society past president John E. Heffner, M.D., discusses the American Thoracic Society statement on pay-for-performance. Credit John E. Heffner, M.D. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.