Risto, Olof, Ola Wahlström, Avni Abdiu, and Thomas Waiz. “Effect of Platelet Derived Growth Factor on Heterotopic Bone Formation in Rats”. Acta Orthopaedica 62, no. 1 (January 1, 1991): 49–51. Accessed May 13, 2026. https://actaorthop.org/actao/article/view/22163.