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MedlinePlus (at National Library of Medicine/National Institutes of Health)
Alt HealthWatch
Science Reference Source
Biology: The eSkeletons Project
The Atlanta Journal Constitution (AJC)
Merriam-Webster's Collegiate Dictionary (in Encyclopædia Britannica Online)
Explora for Middle School
USA.gov (The U.S. Government's Official Web Portal)
U.S. Newsstream (ProQuest)
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