автор: John C. Zandler

Shooting incidents such as the one at Sandy Hook Elementary School in December 2012 and the one at Aurora, CO, movie theater in July 2012 have focused attention on federal policy issues in the law en …

Hydroxyapatite is the most widely accepted biomaterial for the repair and reconstruction of bone tissue defects. It has all the characteristic features of biomaterials, such as, biocompatible, bioact …