Botulinum toxin combined with static progressive stretching improves fibrous stiffness of knee joint in rats through TGF-β1/Smad pathway. Biomol Biomed [Internet]. 2024 Dec. 11 [cited 2025 Mar. 11];:259–273. Available from: https://www.bjbms.org/ojs/index.php/bjbms/article/view/10526