Cipriano Jr, Gerson, Graziella França Bernardelli, Ross Arena, Luis Vicente Franco Oliveira, Francisco Valdez, and João Nelson Rodrigues Branco. “Cardio-Respiratory Responses of the 6-Minute Walk Test in Patients With Refractory Heart Failure During the Preoperative Period for Heart Transplant Surgery”. Monaldi Archives for Chest Disease 74, no. 2 (December 23, 2015). Accessed April 29, 2024. https://www.monaldi-archives.org/macd/article/view/269.