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Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

A maior comunidade do mundo para compartilhamento de apresentações do PowerPoint, do OpenOffice, Keynote, PDF e infográficos.

CDC Centers for Disease Control and Prevention - Your Online Source for Credible Health Information

PLoS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.

Bible prophecy and fullfilled bible prophecies are one of the most powerful evidences for the argument that the bible is the inspired word of God. Even in secular circles bible prophecy news is beginning to circulate around the globe as ancient proph...

Analysis Group provides economic and financial consulting for complex litigation, regulatory proceedings and corporate strategic planning.

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.