Herford , A., S. Jonse, F. Jonse, E. Bramanti, L. Laino, and M. Cicciù. “Clinical Investigation of RhBMP-2 and Simultaneous Dental Implants Placement: Preliminary Results”. Oral & Implantology, vol. 7, no. 4, Dec. 2014, pp. 99-107, https://www.oimplantology.org/oimp/article/view/124.