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Physician Urs Scherrer, visiting professor at the University of Berne at the department of clinical research, head of the research unit "cardiology", pictured on April 13, 2012, at his laboratory at the "Insel" Hospital in Berne, Switzerland. (KEYSTONE/Alessandro della Valle) Der Arzt Urs Scherrer, Gastprofessor an der Universitaet Bern im Departement Klinische Forschung, Leiter der Forschungsgruppe Kardiologie, posiert am 13. April 2012 in seinem Labor im Inselspital Bern. (KEYSTONE/Alessandro della Valle)