1. Department of Experimental Medicine IUniversity of Erlangen-NürnbergErlangenGermany
2. Institute of Molecular VirologyMünster University Hospital Medical SchoolMünsterGermany
3. Department of Gynecology and ObstetricsMedical School J. W. Goethe-UniversityFrankfurtGermany
4. Institute of PathologyUniversity Hospital Medical SchoolBonnGermany
5. Department of Biopathology and Bio medical MethodologyUniversity of PalermoPalermoItaly
6. Experimental Neonatology Department of PediatricsMedical University of InnsbruckInnsbruckAustria