Solheim, Eirik, Else Marie Pinholt, Gisle Bang, and Einar Sudmann. 1992. “Comparison of Histomorphometry and 85Sr Uptake in Induced Heterotopic Bone in Rats”. Acta Orthopaedica 63 (3):334-38. https://doi.org/10.3109/17453679209154795.