1 Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University, Homburg, Germany.
2 Department of Environment & Biodiversity, University of Salzburg, Salzburg, Austria.
3 Department of Dental Pathology, University of East Sarajevo, East Sarajevo, Bosnia and Herzegovina.
4 Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany.
5 Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany.
6 Department of Pediatric Surgery, University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany.