1. Institute of Microbiology of the CAS, v.v.i. Prague Czech Republic
2. Faculty of Science, Charles University Prague Czech Republic
3. Department of Pathology, School of Dental MedicineUniversity of Pennsylvania Philadelphia PA USA
4. Department of Orofacial Sciences and Program in Craniofacial BiologyUniversity of California San Francisco CA USA
5. Department of Chemical and Biomolecular EngineeringLehigh University Bethlehem PA USA
6. The Department of Cell and Molecular Biology at Karolinska Institutet Stockholm Sweden