1. Institute of Hygiene, University of Münster, Robert-Koch-Str. 41, 48149 Münster, Germany
2. Interdisciplinary Center for Clinical Research, University of Münster, Domagkstr. 3, 48149 Münster, Germany
3. Molecular Horizon, Via Montelino 30, 06084 Bettona, Perugia, Italy