Essving, P., Axelsson, K., Kjellberg, J., Wallgren, Örjan, Gupta, A., & Lundin, A. (2009). Reduced hospital stay, morphine consumption, and pain intensity with local infiltration analgesia after unicompartmental knee arthroplasty. Acta Orthopaedica, 80(2), 213–219. https://doi.org/10.3109/17453670902930008