Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Physicochemical characterization of HA burr hole buttons device using XRD spectrum of the powdered device material with the standard pattern of hydroxyapatite (PDF 9-432) superposed. (b) SEM micrograph of HA Burr Hole Buttons showing porosity distribution. (c) HA-Burr Hole buttons.
