Oliveira, S. M., Barrias, C. C., Almeida, I. F., Costa, P. C., Pena Ferreira, M. R., Bahia, M. F., & Barbosa, M. A. (2008). Injectability of a bone filler system based on hydroxyapatite microspheres and a vehicle with in situ gel-forming ability. Journal of Biomedical Materials Research - Part B Applied BiomaterialsJ. Biomed. Mater. Res. Part B Appl. Biomater., 87(1), 49 - 58.