1. Periodontology Unit, Centre for Host Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences King’s College London London UK
2. Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research Institute of Dentistry, Barts and The London School of Medicine and Dentistry Queen Mary University London London UK
3. Microbial Diseases Department University College London Eastman Dental Institute London UK
4. Periodontology Unit University College London Eastman Dental Institute London UK
5. Periodontics Department Universidad de Santiago de Compostela Santiago de Compostela Spain