Abstract Due to the popularity of blockchain, there have been many proposed applications of blockchain in the healthcare sector, such as electronic health record (EHR) systems. Therefore, in this paper we perform a systematic literature review of blockchain approaches designed for EHR systems, focusing only on the security and privacy aspects. As part of the review, we introduce relevant background knowledge relating to both EHR systems and blockchain, prior to investigating the (potential) applications of blockchain in EHR systems. We also identify a number of research challenges and opportunities.

中文翻译：

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区块链在确保电子健康记录系统安全和隐私方面的应用：调查

摘要 由于区块链的普及，区块链在医疗保健领域的应用提出了许多建议，例如电子健康记录（EHR）系统。因此，在本文中，我们对专为 EHR 系统设计的区块链方法进行了系统的文献回顾，仅关注安全和隐私方面。作为审查的一部分，在调查区块链在 EHR 系统中的（潜在）应用之前，我们介绍了与 EHR 系统和区块链相关的相关背景知识。我们还确定了许多研究挑战和机遇。