Husted, R S, Troelsen, A, Husted, H, Grønfeldt, B M, Thorborg, K, Kallemose, T, Rathleff, M S & Bandholm, T 2022, ' Knee-extensor strength, symptoms, and need for surgery after two, four, or six exercise sessions/week using a home-based one-exercise program : A randomized dose-response trial of knee-extensor resistance exercise in patients eligible for knee replacement (the QUADX-1 trial) ', Osteoarthritis and Cartilage, vol. 30, no. 7, pp. 973-986 . https://doi.org/10.1016/j.joca.2022.04.001 Husted, R S, Troelsen, A, Husted, H, Grønfeldt, B M, Thorborg, K, Kallemose, T, Rathleff, M S & Bandholm, T 2022, ' Knee-extensor strength, symptoms, and need for surgery after two, four, or six exercise sessions/week using a home-based one-exercise program: a randomized dose–response trial of knee-extensor resistance exercise in patients eligible for knee replacement (the QUADX-1 trial) ', Osteoarthritis and Cartilage, vol. 30, no. 7, pp. 973-986 . https://doi.org/10.1016/j.joca.2022.04.001