Hall, A J, Clement, N D, Revisited Group, I, MacLullich, A M J, White, T O & Duckworth, A 2022, ' COVID-19 during the index hospital admission confers a 'double-hit' effect on hip fracture patients and is associated with a two-fold increase in 1-year mortality risk ', Musculoskeletal Care, vol. 20, no. 3, pp. 705-717 . https://doi.org/10.1002/msc.1674