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English to Spanish translations [PRO] Medical - Medical: Health Care / Patient Assent to participate in a research study
English term or phrase:rocks in soil
If your child takes part in this research, he will receive 2 x - rays per year to the hand/wrist to determine bone age. The amount of radiation to which your son or daughter will be exposed is so small that the precise risk is unknown. There is radiation that occurs naturally from space and from rocks in soil.