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Customers visit a food market in Stavropol
FILE PHOTO: A vendor (L) sells sausage at a food market, which operates once a week on Saturday, in the Russian southern city of Stavropol, March 7, 2015. REUTERS/Eduard Korniyenko
FILE PHOTO: A vendor (L) sells sausage at a food market, which operates once a week on Saturday, in the Russian southern city of Stavropol, March 7, 2015. REUTERS/Eduard Korniyenko