?:authorAffiliation
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[\'Department of Conservative Dentistry and Periodontology, University Hospital, LMU, Munich, Germany. diegritz@dent.med.uni-muenchen.de.\', \'Department of Conservative Dentistry and Periodontology, University Hospital, LMU, Munich, Germany.\', \'Department of Clinical Microbiology and Hospital Hygiene, University Hospital, LMU, Munich, Germany.\']
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