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Author

C. Ytsma

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Open access Oct 2026

Harmonizing UK primary care prescription records for research: a case study in the UK biobank

Abstract Objective We aimed to develop and validate an automated, scalable framework to harmonize fragmented UK primary care prescription records into a research-ready dataset by mapping diverse medical ontologies to a unified reference standard from the UK Biobank. Materials and methods Preprocessing involved selectin...

C. Ytsma, A. Torralbo, N. Fitzpatrick et al. · 0 citations
Open access Sep 2026

Real-world drug use in ATC and ICD-10: an expert-curated drug-diagnosis resource based on UK primary care and Danish hospitalization electronic health records

This resource shows that the vast majority of significantly associated drugs and diagnoses in healthcare records are not due to direct treatment of the diagnosis, and demonstrates the importance of accounting for systematic differences among annotators when working with real-world data.

I. Louloudis, H. Currant, C. Ytsma et al. · 0 citations

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