S. Gulsen, D. Cokeliler, H. Goktas, A. Kucukturhan, B. Ozcil, and H. Caner, “Improved Bone Formation in Osteoporotic Rabbits with the Bone Morphogenetic Protein-2 (rhBMP-2) Coated Titanium Screws Which Were Coated By Using Plasma Polymerization Technique”, Open Access Maced J Med Sci, vol. 2, no. 2, pp. 198–208, May 2014.