Kristoffersen MH, Dybvik E, Steihaug OM, Kristensen TB, Engesæter LB, Ranhoff AH, Gjertsen J-E. Cognitive impairment influences the risk of reoperation after hip frac- ture surgery: results of 87,573 operations reported to the Norwegian Hip Fracture Register. ActaO [Internet]. 2020 Jan. 13 [cited 2024 May 5];91(2):146-51. Available from: https://actaorthop.org/actao/article/view/471