In their study, Rasenick and colleagues compared brain samples from depressed people who had committed suicide with controls who had no history of psychiatric disorders.

在该研究中，Rasenick和他的同事比较了自杀的抑郁症患者和没有精神病史的对照人群的大脑样品。

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For their study, Picardi and his colleagues recruited a random sample of female nurses, who were younger than 60 years old, had no chronic illnesses and no history of major psychiatric disorders.

Picardi和他的同事在实验中补充了一些年龄小于60岁、没有慢性疾病和主要的精神病史的女性护士作为随机样本。

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