婴儿和儿童期相对小剂量照射增加良性和恶性甲状腺瘤危险。

Relatively small doses of radiation during infancy and childhood increase the risk of developing benign and malignant thyroid neoplasms.

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目的：探讨长期小剂量照射下放射工作人员染色体畸变的临床意义。

Objective To investigate the clinical significance of chromosomal aberration of low dose professional radiation for workers in radiology departments.

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同时也探讨了在小剂量照射条件下染色体畸变类型特点，以及染色体畸变与微核之间的关系。

The correlation test demonstrated that there was a close relationship between the irradiation dose and the rate of chromosome aberration, the frequency of development of micro-nucleus, or both.

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