Sun Yat-sen University Cancer Center SYST
relapse-free survival RFS
overall survival rates OS
sacrococcygeal yolk sac tumor SYST
germ cell tumors GCT
alfa fetoprotein AFP
complete remission CR
partial remission PR
extracranial germ cell tumors EGCTs
cyclophosphamide CTX
vinorelbine NVB
International Germ Cell Consensus Classification IGCCC
risk factor RF