The National Gallery <a href=" http://www.prodental.com/?street-value-of-rx-drugs#purpose ">why are generic versions of some prescription drugs not always available</a> The next step was for Turkey to actually negotiate the termsof the deal with the Chinese provider, which could presentopportunities to back away from the deal, said the source,adding that U.S. government and industry officials had notreceived any advance notice about Turkey's intentions.