Rosselkhoznadzor chief Sergey Dankvert spoke on the phone with his counterparts in Hungary and Greece on the reviews, which will begin in both countries on April 20, Tass added. A group of Russian experts will scrutinize approximately 20 Hungarian companies within a ten-day period. Russia introduced an embargo on food imports from Europe last August, as a counter-measure to sanctions imposed by the West due to the crisis in Ukraine.