Sezgin, E. A., Robertsson, O., W-Dahl, A., & Lidgren, L. (2018). Nonagenarians qualify for total knee arthroplasty: a report on 329 patients from the Swedish Knee Arthroplasty Register 2000–2016. Acta Orthopaedica, 90(1), 53–59. https://doi.org/10.1080/17453674.2018.1530173