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Discrepancy in the valid values for the variable overall histology across three studies. CC, choriocarcinoma; COG, Children’s Oncology Group; EC, embryonic carcinoma; GE, germinoma; IMT/IT, immature teratoma; MD, teratoma differentiated; MGCT, mixed germ cell tumor; MT, mature teratoma; MTI, malignant teratoma intermediate; MTT, malignant teratoma trophoblast; MTU, malignant teratoma undifferentiated; YST, yolk sac tumor.
