Medical Laboratories & Research Press Releases from SmartBrief http://www.smartbrief.com/news/AANP/pressReleases.jsp?sb_code=RSS&industry=Medical%20Laboratories%20%26%20Research Medical Laboratories & Research Press Releases from SmartBrief Quest Diagnostics Announces Final Tender Offer Results Fri, 20 Nov 2009 07:34:16 CST New Hair Data Validate Sharp Downward Trend in Cocaine and Methamphetamine Positivity in General U.S. Workforce, According to Quest Diagnostics Drug Testing Index(TM) Fri, 20 Nov 2009 06:04:16 CST