1. Centro de Oncologia e Hematologia – Hospital Israelita Albert Einstein, 627 Albert Einstein Avenue, São Paulo, SP 05653-120, Brazil
2. Department of Medical Oncology, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
3. Department of Melanoma Medical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
4. Department of Hematology and Oncology, and Temple University, Easton, PA, USA
5. Department of Oncology, Georgetown University School of Medicine, Georgetown-Lombardi Comprehensive Cancer Center, Washington, DC, USA
6. Department of Medical Oncology, Hospital Israelita Albert Einstein, São Paulo, SP, Brazila and Department of Medical Oncology, A Beneficência Portuguesa de São Paulo - BP, São Paulo, SP, Brazil