Germ Cell
Central Nervous System, Childhood
Extracranial Germ Cell Tumor, Childhood
Extragonadal Germ Cell Tumor
Ovarian Germ Cell Tumor
Testicular Cancer
Central Nervous System, Childhood
Extracranial Germ Cell Tumor, Childhood
Extragonadal Germ Cell Tumor
Ovarian Germ Cell Tumor
Testicular Cancer