@article{article, title  = {{Replicating a COVID-19 study in a national England database to assess the generalisability of research with regional electronic health record data}},

 url = {{}},

 year = {{2025}},

 month = {{4}},

 author = {{Williams R and Jenkins D and Bolton T and Heald A and Mizani M and Sperrin M and Peek N and Boyle J and Proudfoot A and Constantine A and Jones D et al}},

 doi = {{10.1136/bmjopen-2024-093080}},

 volume = {{15}},

 journal = {{BMJ Open}},

 issue = {{4}},

 note = {{Accessed on 2025/10/25}}}