Heikkilä, Jouni T, Allan J Aho, Antti Yli-Urpo, örjan H Andersson, Heikki J Aho, and Risto-Pekka Happonen. “Bioactive Glass Versus Hydroxylapatite in Reconstruction of Osteochondral Defects in the Rabbit”. Acta Orthopaedica 64, no. 6 (January 1, 1993): 678–682. Accessed April 27, 2026. https://actaorthop.org/actao/article/view/21874.