Bartels, S.; Gjertsen, J.-E.; Frihagen, F.; Rogmark, C.; Utvåg, S. E. High Failure Rate After Internal Fixation and Beneficial Outcome After Arthroplasty in Treatment of Displaced Femoral Neck Fractures in Patients Between 55 and 70 Years. ActaO 2018, 89, 53-58.