Serum homovanillic acid (HVA), FSH, LH and testosterone (TS) were examined in healthy first degree relatives of schizophrenic patients.

应用高压液相和放免分析法测定精神分裂症病人一级健康亲属的血清高香草酸（HVA）、FSH、LH和睾酮（TS）浓度。

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The risk of a second cancer increased with the number of first degree relatives with cancer.

患第二种癌症的风险随着一等亲患癌症的人数增加而增加。

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AIM: To study the changes of blood glucose and lipid levels in normal siblings of first degree relatives of type 2 diabetes families.

目的：研究家族性2型糖尿病家系一级亲属正常同胞的血糖血脂代谢变化。

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The relatives, aged between 40 and 75, were first degree relatives of Alzheimer's patients.

BBC: Genetic clue to Alzheimer's risk

The fifth question asks how many first-degree relatives your mother, sisters or daughters have had the disease.

NPR: Online Calculator Estimates Breast Cancer Risk

Have any of your child's first-degree relatives such as a parent or sibling been diagnosed with Angelman syndrome?

CNN: Angelman syndrome