Laasik, R., . P. Lankinen, M. Kivimäki, V. Aalto, M. Saltychev, K. Mäkelä, and J. Vahtera. “Return to Work After Primary Total Hip Arthroplasty: A Nationwide Cohort Study”. Acta Orthopaedica, vol. 90, no. 3, Mar. 2019, pp. 209-13, doi:10.1080/17453674.2019.1591081.