1. Department of Periodontology, School of Dentistry; Mohammed V University; Morocco
2. Laboratory of Oral Microbiology and Biotechnology; School of Dentistry, Mohammed V University in Rabat; Morocco
3. Division of Oral Microbiology; Umeå University; Sweden
4. Dental School University of Ghana; Ghana
5. Section for Pediatric Dentistry, Department of Dentistry and Oral Health; Aarhus University; Denmark
6. Division of Molecular Periodontology, Department of Odontology; Umeå University; Sweden