Saad, Ivete Alonso Bredda, Eduardo Mello De Capitani, Ivan Felizardo Contrera Toro, and Lair Zambon. “Clinical Variables of Preoperative Risk in Thoracic Surgery”. São Paulo Medical Journal 121, no. 3 (May 5, 2003): 107–110. Accessed March 14, 2025. https://periodicosapm.emnuvens.com.br/spmj/article/view/2600.