In this photo taken on Wednesday, April 22, 2015, A migration center employee takes migrant's blood for test at Moscow's migration center in Sakharovo, a village about 60 kilometers (35 miles) south of Moscow, Russia, Wednesday, April 22, 2015. Some migrants complain that it takes up to three days to get all of the paperwork completed, requiring repeated trips to the center in Sakharovo, a village about 60 kilometers (35 miles) south of the city. (AP Photo/Alexander Zemlianichenko)

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