1. Clinical Nutrition Service, Hospital Israelita Albert Einstein, São Paulo, Brazil.
2. Supervisor of the General Surgery Residency and Professor of Medicine, Emergency Surgery, Hospital Israelita Albert Einstein, São Paulo, Brazil.
3. Oncology and Hematology Department, Hospital Israelita Albert Einstein, São Paulo, Brazil.
4. Associate Professor of Medicine, Nephrology, Hospital Israelita Albert Einstein, São Paulo, Brazil.