1. A crystallized view of the surgical treatment of the painful osteoarthritic hip;Adams;J. Bone Joint Surg.,1971
2. American Dental Association: Guide to Dental Materials and Devices, 1970-1971, p. 165.
3. American Society for Testing and Materials: Annual Book of ASTM Standards. Philadelphia, 1971, Part 7.
4. Atlas, S. M, and Mark, H. F.: Resistance of polymers to degradation. In Plastics in Surgical Implants. ASTM Special Technical Publication, No. 386, 1965, p. 63.
5. Toxicity, untoward reactions and related considerations in the medical use of plastics;Autian;J. Pharm. Sci.,1964