?:authorAffiliation
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[\'Institute of Hygiene, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Cologne, Germany. Electronic address: maleckim@kliniken-koeln.de.\', \'Institute of Pathology, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Cologne, Germany.\', \'Institute of Hygiene, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Cologne, Germany.\']
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