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Brandenburg Med Sch Theodor Fontane, Ctr Hlth Serv Res, Fehrbelliner Str 38, D-16816 Neuruppin, Germany
Danube Private Univ, Fac Med Dent, MIAAI Grp, Hlth Serv Res, Steiner Landstr 124, A-3500 Krems, Austria German Econ Inst, Res Unit Vocat Participat & Inclus, Konrad Adenauer Ufer 21, D-50668 Cologne, Germany