New research shows that childhood cancers in the US vary by geographical region, age, race, ethnicity and gender, and that the findings could be used to better understand and track childhood cancers.

• 新的研究显示：美国儿童癌症存在地理区域、年龄、人种、种族与性别差异。此发现使我们能够更好地理解与追踪研究儿童癌症。