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Objective To examine whether childhood brain tumors (CBTs) are associated with a family history of brain tumors or other cancers in an international case–control study. Methods Cancers in children’s first- and second-degree relatives were ascertained by interview with parents of 620 children with astroglial tumors, 255 with primitive neuroectodermal tumors, 324 with other CBTs, and 2,218 controls...
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