Ruivo, E. A. B., J. R. C. Mello, O. Mauad Cavenaghi, A. Lins Werneck, and L. Lima Ferreira. “Respiratory Muscle Strength of Patients With Esophagus and Stomach Neoplasms”. Fisioterapia Em Movimento (Physical Therapy in Movement), vol. 30, Nov. 2017, doi:10.1590/1980-5918.030.S01.AO13.