But the new observational study (Abuse Rates and Routes of Administration of Reformulated Extended-Release Oxycodone: Initial Findings From a Sentinel Surveillance Sample of Individuals Assessed for Substance Abuse Treatment), suggests a breakthrough.

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The relatively small sample had been narrowed down from an initial group of 217 people.

BBC: Music 'releases mood-enhancing chemical in the brain'

The sample was sent to UC Davis for initial testing, which came back inconclusive.

CNN: Mad cow case confirmed in California

The sample was sent to the University of California at Davis for initial testing, which came back inconclusive.

CNN: STORY HIGHLIGHTS

Three days later when the first men to reach another world arrived, their initial act, within moments of setting foot there, was to document and collect a precious sample of lunar dust, to share with laboratories across the Earth.

BBC: The magic of Apollo

The initial plan formulated in early 2004 called for the recruitment of 100, 000 pregnant women from a random sample of U.S. households in about 100 communities, mostly individual counties across the country.

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