This study investigates whether there is a relationship between alcohol and cocaine use in deaths where suicide by self-injury is the suspected cause of death.

中文翻译：

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疑似自杀前使用酒精和可卡因：来自毒理学的见解

这项研究调查了酒精和可卡因在死亡中是否存在关系，其中自伤自杀是疑似死因。