Westerdahl, E., and M. Fagevik Olsén. “Chest Physiotherapy and Breathing Exercises for Cardiac Surgery Patients in Sweden - A National Survey of Practice”. Monaldi Archives for Chest Disease 75, no. 2 (December 10, 2015). Accessed May 3, 2024. https://www.monaldi-archives.org/macd/article/view/223.