Niemeläinen, Mika, Jarkko Kalliovalkama, Antti J Aho, Teemu Moilanen, and Antti Eskelinen. 2014. “Single Periarticular Local Infiltration Analgesia Reduces Opiate Consumption until 48 Hours After Total Knee Arthroplasty”. Acta Orthopaedica 85 (6):614-19. https://doi.org/10.3109/17453674.2014.961399.