The National Gallery <a href=" http://www.welaunch.co.uk/nexium-esomeprazole-en-espal.pdf ">nexium from canada prices </a> Since the 2-1/2-year revolt against President Bashar al-Assad began, Syria's opposition forces have been riven with factionalism and rivalries. There have also been tensions between Islamist groups and those that support a secular vision for a post-Assad Syria.