<prompt> Chemotherapy for Retinoblastoma isVincristine, Etoposide, CisplatinVinblastine, Epirubicin, CisplatinVincristine, Etopside, CyclophosphamideVinblastine, Etoposide, Cisplatin  <response>: VEC regimen - Vincristine, Etoposide, Cisplatin. 