Bartels, S., Gjertsen, J.-E., Frihagen, F., Rogmark, C., & Utvåg, S. E. (2018). 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. Acta Orthopaedica, 89(1), 53–58. https://doi.org/10.1080/17453674.2017.1376514