Gjertsen J-E, Boutera A, Dyvik E, Hallan G. Is there a weekend effect after hip fracture surgery? A study of 74,410 hip fractures reported to the Norwegian Hip Fracture Register. ActaO [Internet]. 2019 Oct. 30 [cited 2024 Nov. 22];91(1):63-8. Available from: https://actaorthop.org/actao/article/view/387