1 Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Hufelandstraße 55, 45147 Essen, Germany. Electronic address: [email protected].
2 Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Hufelandstraße 55, 45147 Essen, Germany.
3 Medical Emergency Service of the City of Essen, Germany; Department for Trauma, Hand and Reconstructive Surgery, University Hospital of Essen, Germany.
4 Center for Clinical Trials, University Hospital Essen, Germany.
5 Public Health Office of the City of Essen, Germany.
6 Institute for Virology, University Hospital Essen, Germany.
7 Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Hufelandstraße 55, 45147 Essen, Germany; School of Public Health, Department of Epidemiology, Boston University, Boston, United States.