1. Institute of Medical Microbiology and HygieneUniversity of Saarland HospitalHomburg/SaarGermany
2. Clinic of Operative Dentistry and PeriodontologyUniversity of Saarland HospitalHomburg/SaarGermany
3. Department of Internal Medicine IUniversity HeidelbergHeidelbergGermany
4. Experimental Immunology BranchNCIBethesdaMDUSA
5. Department of DermatologyHeinrich‐Heine‐UniversityDü sseldorfGermany
6. Institute of BiochemistryJustus‐Liebig‐UniversityGiessenGermany
7. Institute of Medical MicrobiologyUniversity HospitalMü nsterGermany
8. Department of Medical Biochemistry and Molecular BiologyUniversity of Saarland HospitalHomburg/SaarGermany