Strömqvist, Björn, and Lars Ingvar Hansson. 1983. “Avascular Necrosis Associated With Nailing of Femoral Neck Fracture: Two Cases Examined Pre- and Postoperatively by Tetracycline and Radionuclide Tracer Techniques”. Acta Orthopaedica 54 (5):687-94. https://doi.org/10.3109/17453678308996612.