1. Department of Critical Care Medicine, Hospital do C�ncer/UOPECCAN, Cascavel, Paran� 85806‑300, Brazil
2. Department of Pathology, Hospital do C�ncer/UOPECCAN, Cascavel, Paran� 85806‑300, Brazil
3. Department of Thoracic Surgery, Hospital do C�ncer/UOPECCAN, Cascavel, Paran� 85806‑300, Brazil
4. Department of Oncology, Hospital do C�ncer/UOPECCAN, Cascavel, Paran� 85806‑300, Brazil