Blockchain Personal Health Records: Systematic Review.

J Med Internet Res · 2021 · PMC8080150 · PMID 33847591

Europe PMC DOI

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an increasing trendno p-value reported

In the review, we found that the blockchain PHR space has matured over the past 5 years, from purely conceptual ideas initially to an increasing trend of publications describing prototypes and even implementations.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.