Chatmaitri, S., S. Tangwiwat, P. Halilamien, P. Ruangsomboon, C. Pornrattanamaneewong, K. Chareancholvanich, and R. Narkbunnam. “Efficacy of Adding an Interspace Block to the Posterior Knee for Perioperative Pain in Total Knee Arthroplasty: A Randomized Controlled Trial”. Acta Orthopaedica, vol. 93, Nov. 2022, pp. 894-00, doi:10.2340/17453674.2022.5257.