Penny, J. Østergaard, Ovesen, O., Brixen, K., Varmarken, J.-E., & Overgaard, S. (2010). Bone mineral density of the femoral neck in resurfacing hip arthroplasty. Acta Orthopaedica, 81(3), 318–323. https://doi.org/10.3109/17453674.2010.480935