1. Department of Critical Care of Barretos Cancer Hospital, Barretos, Brazil
2. Department of Research of Hospital São Luis Itaim, São Paulo, Brazil
3. Department of Education of Hospital Israelita Albert Einstein, São Paulo, Brazil
4. Department of Science Information of Barretos Cancer Hospital, Barretos, Brazil
5. Department of Critical Care, University Hospital of Universidad de la Republica (UDELAR), Montevideo, Uruguay
6. Department of Critical Care of Hospital Israelita Albert Einstein, São Paulo, Brazil