Benseñor, F. E. M., J. E. Vieira, and J. O. C. Auler Júnior. “Thoracic Sympathetic Block Reduces Respiratory System Compliance”. São Paulo Medical Journal, vol. 125, no. 1, Jan. 2007, pp. 9-14, https://periodicosapm.emnuvens.com.br/spmj/article/view/2057.