1. Healing of gaps around calcium phosphate-coated implants in trabecular bone of the goat
2. A.J. Cann, Principles of Molecular Virology, Prion Diseases, third edition (Academic Press, San Diego–San Francisco–New York–Boston–London–Sydney–Tokyo, 2001) 258.
3. National Prion Diseases Pathology Center, http://www.cjdsurveillance.com.
4. Morphological and chemical features of biological hydroyapatite;Uzel,1992