Andersen, L. Ø et al. 2008. Local anesthetics after total knee arthroplasty: intraarticular or extraarticular administration? A randomized, double-blind, placebo-controlled study. Acta Orthopaedica. 79, 6 (Jan. 2008), 800–805. DOI:https://doi.org/10.1080/17453670810016885.