Rogmark, Cecilia, and Olof Johnell. “Primary Arthroplasty Is Better Than Internal Fixation of Displaced Femoral Neck Fractures: A Meta-Analysis of 14 Randomized Studies With 2,289 Patients”. Acta Orthopaedica, vol. 77, no. 3, Jan. 2006, pp. 359-67, doi:10.1080/17453670610046262.