[1] LUDWIG INST CANC RES, RVA PROF ANTONIO PRUDENTE 109-4, BR-01509 SAO PAULO, BRAZIL
[2] UNIV SAO PAULO, SCH MED, DEPT CLIN MED, ONCOL SERV, SAO PAULO, SP, BRAZIL
[3] UNIV SAO PAULO, SCH MED, DEPT OPHTHALMOL, OTORHINOLARYNGOL SERV, SAO PAULO, SP, BRAZIL
[4] SAO PAULO ONCOCTR FDN, SAO PAULO, BRAZIL