BERLIN, MAY 21 - The International Tracing Service (ITS), established by the Allies at the end of the war, has uploaded more than 13 million documents from Nazi concentration camps online, including prisoner records and death certificates, to help Holocaust researchers to find out about the fate of the victims. The service, which was then managed by the Red Cross, from today changes its name to "Arolsen Archives - International Center on Nazi Persecution", based in Bad Arolsen, Germany, and operates thanks to the contribution of Yad Vashem, in Israel.