Herr, Gerhard, Carl-Heinz Hartwig, Cornelia Boll, and Wolfgang Küsswetter. “Ectopic Bone Formation by Composites of BMP and Metal Implants in Rats”. Acta Orthopaedica 67, no. 6 (January 1, 1996): 606–610. Accessed May 25, 2026. https://actaorthop.org/actao/article/view/21075.