Reito, Aleksi, et al. “Gluteal Muscle Fatty Atrophy Is Not Associated With Elevated Blood Metal Ions or Pseudotumors in Patients With a Unilateral Metal-on-Metal Hip Replacement”. Acta Orthopaedica, vol. 87, no. 1, Jan. 2016, pp. 29-35, doi:10.3109/17453674.2015.1094713.