Harmonising electronic health records for reproducible research: challenges, solutions and recommendations from a UK-wide COVID-19 research collaboration. - Hoda Abbasizanjani; Fatemeh Torabi; Stuart Bedston; Thomas Bolton 002; Gareth Davies 005; Spiros C. Denaxas; Rowena Griffiths; Laura Herbert; Sam Hollings; Spencer Keene; Kamlesh Khunti; Emily Lowthian; et al. (BMC Medical Informatics Decis. Mak., 2023)