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机构:
Univ Cologne, Dept Palliat Med, Fac Med, Cologne, Germany
Univ Cologne, Univ Hosp, Cologne, Germany
Univ Cologne, Ctr Integrated Oncol Aachen Bonn Cologne Duesseld, Fac Med, Cologne, Germany
Univ Cologne, Ctr Hlth Serv Res, Fac Med, Cologne, Germany Univ Cologne, Dept Palliat Med, Fac Med, Cologne, Germany