[1] Hosp Sirio Libanes, Sao Paulo, Brazil
[2] Univ Sao Paulo, Fac Med, Inst Canc Estado Sao Paulo, Dept Oncol, Sao Paulo, Brazil
[3] Dendrix Res, Sao Paulo, Brazil
[4] Clinica AMO, Salvador, BA, Brazil
[5] Clinica Oncol Med, Sao Paulo, Brazil
[6] Hosp Mae Deus, Porto Alegre, RS, Brazil
[7] Ctr Paulista Oncol, Sao Paulo, Brazil