ROANOKE, Virginia, April 30 (TNSres) -- The Fralin Biomedical Research Institute at Virginia Tech issued the following news: * * * New online tool tests how taxes shape sugar-sweetened drink purchases Researchers at the Fralin Biomedical Research Institute at VTC created the Experimental Beverage Marketplace to study how taxes affect consumers' purchase of soft drinks, energy drinks, and other sugary beverages. By Matt Chittum Americans like their soda pop. And their sports drinks, and ene  more