Researchers compared 20 veterans who had attempted suicide with 20 similar veterans who had not. Those who attempted suicide exhibited different patterns of gene expression, hinting at the existence of biological markers that could predict which patients may attempt suicide.

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Researchers compared 20 veterans who had attempted suicide with 20 similar veterans who had not. Those who attempted suicide exhibited different patterns of gene expression, hinting at the existence of biological markers that could predict which patients may attempt suicide.