Winther, Siri B, Anders Sjøstrøm, Sølvi Liabakk-Selli, Olav A Foss, Tina S Wik, and Jomar Klaksvik. “Response to Letter: Using KOOS-PS to Validate Dichotomous Global Rating of Improvement or Worsening Following Total Knee Arthroplasty”. Acta Orthopaedica 95 (December 23, 2024): 750–751. Accessed May 17, 2026. https://actaorthop.org/actao/article/view/42743.